Muscarinic antagonists

Abstract

Di-N-substituted piperazine or 1,4 di-substituted piperadine compounds in accordance with formula I (including all isomers, salts, esters, and solvates) 1

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to di-N-substituted piperazines and 1,4-di-substituted piperidines useful in the treatment of cognitive disorders, pharmaceutical compositions containing the compounds, methods of treatment using the compounds, and to the use of said compounds in combination with acetylcholinesterase inhibitors.

[0002] Alzheimer's disease and other cognitive disorders have received much attention lately, yet treatments for these diseases have not been very successful. According to Melchiorre et al. (J. Med. Chem. (1993), 36, 3734-3737), compounds that selectively antagonize M2 muscarinic receptors, especially in relation to M1 muscarinic receptors, should possess activity against cognitive disorders. Baumgold et al. (Eur. J. of Pharmacol., 251, (1994) 315-317) disclose 3-α-chloroimperialine as a highly selective m2 muscarinic antagonist.

[0003] The present invention is predicated on the discovery of a class of di-N-substituted piperazines and 1,4-di-substituted piperidines, some of which have m2 selectivity even higher than that of 3-α-chloroimperialine. Logemann et al (Brit. J. Pharmacol. (1961), 17, 286-296) describe certain di-N-substituted piperazines, but these are different from the inventive compounds of the present invention. Furthermore, the compounds of Logemann et al. are not disclosed to have activity against cognitive disorders.

SUMMARY OF THE INVENTION

[0004] The present invention relates to compounds according to the structural formula I, 2

[0005] including all isomers and pharmaceutically acceptable salts, esters, and solvates thereof,

[0006] wherein one of Y and Z is N and the other is N, CH, or C-alkyl;

[0007] X is —O—, —S—, —SO—, —SO2—, —NR6—, —CO—, —CH2—, —CS—, —C(OR5)2—, —C(SR5)2—, —CONR20—, —C(alkyl)2-, —C(H)(alkyl)-, —NR20—SO2—, —NR20CO—, 3

[0008] R is

[0009] hydrogen, acyl, alkyl, alkenyl, cycloalkyl, cycloalkyl substituted with up to two alkyl groups, cycloalkenyl, bicycloalkyl, arylalkenyl, benzyl, benzyl substituted with up to three independently selected R3 groups, cycloalkylalkyl, polyhaloacyl, benzyloxyalkyl, hydroxyC2-C20alkyl, alkenylcarbonyl, alkylarylsulfonyl, alkoxycarbonylaminoacyl, alkylsutfonyl, or arylsulfonyl, additionally, when X is —CH2—, R may also be —OH; in further addition, when X is not N, R may also be hydroxymethyl, in further addition, R and X may combine to form the group Prot-(NOAA)r—NH— wherein r is an integer of 1 to 4, Prot is a nitrogen protecting group and when r is 1, NOAA is a naturally occuring amino acid or an enantiomer thereof, or when r is 2 to 4, each NOAA is a peptide of an independently selected naturally occuring amino acid or an enantiomer thereof;

[0010] R1 and R21 are independently selected from the group consisting of alkyl, alkenyl, cycloalkyl, cycloalkenyl, bicycloalkyl, alkynyl, cyano, aminoalkyl, alkoxycarbonyl, aminocarbonyl, hydroxyguanidino, alkoxycarbonylalkyl, phenyl alkyl, alkylcarbonlyoxyalkyl, 4

[0011] H, —OH, (provided R1 and R21 are both not —OH and Y is not N), formyl, —CO alkyl, —COacyl, —COaryl, and hydroxyalkyl; additionally R1 and R21 together may form the group

[0012] —CH2, ═N—OR5, ═N—CN, ═N—N(R5)2, ═CH-Alkyl, alkylene, = 5

[0013] ═C(halo)2, in further addition, R1 and R21 together with the carbon atom to which they are attached may form the group 6

[0014] or R1 and R21 together with the carbon atom to which they are attached may form a saturated heterocyclic ring containing 3 to 7 carbon atoms and one group selected from S, O, and NH;

[0015] R2 is H, alkyl, alkenyl, cycloalkyl, cycloalkyl substituted with 1 to 3 independently selected R3 groups, cycloalkenyl, hydroxyC2-C20alkyl, alkynyl, alkylamide, cycloalkylalkyl, hydroxyarylalkyl, bicycloalkyl, alkynyl, acylaminoalkyl, arylalkyl, hydroxyalkoxyalkyl, azabicyclo, alkylcarbonyl, alkoxyalkyl, aminocarbonylalkyl, alkoxycarbonylaminoalkyl, alkoxycarbonylamino(alkyl)alkyl; alkylcarbonyloxyalkyl, arylhydroxyalkyl, alkylcarbonylamino(alkyl)alkyl, dialkylamino, 7

[0016] (wherein q is an integer of 0 to 2) 8

[0017] wherein t is an integer of 3 to 5, 9

[0018] (wherein R29 is H, alkyl, acyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylsulfonyl, arylsulfonyl), 10

[0019] (wherein Q is O, NOH, or NO-alkyl), or when Z is —CH—, R2 may also be alkoxycarbonyl, hydroxymethyl, —N(R8)2;

[0020] R3, R4, R22, R24, and R25 are independently selected from the group consisting of H, halo, alkoxy, benzyloxy, benzyloxy substituted by nitro or aminoalkyl, haloalkyl, polyhaloalkyl, nitro, cyano, sulfonyl, hydroxy, amino, alkylamino, formyl, alkylthio, polyhaloalkoxy, acyloxy, trialkylsilyl, alkylsulfonyl, arylsulfonyl, acyl, alkoxycarbonyl alkylsulfinyl; —OCONH2, —OCONH-alkyl, —OCON(alkyl)2, —NHCOO-alkyl, —NHCO-alkyl, phenyl, hydroxyalkyl, or morpholino;

[0021] each R5 and R6 is independently selected from the group consisting of H and alkyl, provided that when X is C(OR5)2 or C(SR5)2, both R5 groups cannot be H, and in addition, when X is C(OR5)2 or C(SR5)2, the two R5 groups in X may be joined to form —(CH2)p- wherein p is an integer of 2 to 4;

[0022] R7 is independently selected from the group consisting of H, alkyl, arylalkyl, cycloalkyl, aryl and aryl substituted with R3 and R4 as defined herein;

[0023] each R8 is independently selected from the group consisting of H, hydroxyalkyl, or alkyl or two R8 groups may be joined to form an alkylene group;

[0024] R9 is H, alkyl, or acyl:

[0025] R20 is H, phenyl or alkyl; and

[0026] R27 and R28 are independently selected from the group consisting of H, alkyl, hydroxyalkyl, arylalkyl, aminoalkyl, haloalkyl, thioalkyl, alkylthioalkyl, carboxyalkyl, imidazolyalkyl, and indolyalkyl, additionally R27 and R28 may combine to form an alkylene group.

[0027] In a preferred group of compounds Y and Z are N

[0028] In another preferred group of compounds Y is CH and Z is N

[0029] In another preferred group of compounds R is 11

[0030] and X is O, SO or SO2.

[0031] In another preferred group of compounds R3 and R4 are H and either R1 is cycloalkyl, alkyl, or CN and R21 is H or R1 and R21 together form ═CH2 or ═O.

[0032] In another preferred group of compounds R is 12

[0033] X is O, SO or SO2, R3 and R4 are H and either R1 is cycloalkyl, alkyl, or CN and R21 is H or R1 and R21 together form ═CH2 or ═O.

[0034] In another preferred group of compounds Y and Z are N, R1 is cycloalkyl, alkyl or CN, R21 is H and R2 is cycloalkyl or 13

[0035] In another preferred group of compounds Y is CH, Z is N, and R2 is cycloalkyl or 14

[0036] In another preferred group of compounds at least one of R27 and R28 is alkyl.

[0037] In another preferred group of compound one of R27 or R28 is methyl and the other is hydrogen.

[0038] In another preferred group of compounds R is 15

[0039] Another preferred group of compounds is the group represented by the formula 16

[0040] wherein R, X, R1, R27, and R21 are as defined in the following table

# from
table of
com-
pounds	R	X	R1	R21	R27
169	4(CH3O)—C6H4	SO	CN	H	H
		iso A
227(−)	2-pyrimidinyl	O	cyclohexyl	H	H
289	4(CH3O)—C6H4	SO	CN	CH3	H
269	2-pyrimidinyl	O	CH3	H	CH3
214	4(CH3O)—C6H4	SO2	CO2CH3	H	H
232	2-pyrimidinyl	O	i-propyl	H	H
123	4(CH3O)—C6H4	SO	CH3	H	H
236	4(CH3O)—C6H4	SO	17	H	H
296	4-(CH3O)—C6H4	SO	CH3	CO2Me	H

[0041] or having the structural formula 18

[0042] Another group of preferred compounds of formula I are:

[0043] (in the table that follows, when R2 is substituted cyclohexyl, the substituent positions are numbered as follows: 19

	compound #	600	601	602	603	604
	R	20	CH3	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4
	R1	CH3	CH3	CH3	CH3	COOCH3
	R2	cyclohexyl	chex	chex	chex	chex
		(chex)
	R3	H	H	2-Cl	H	H
	R4	H	H	H	H	H
	R21	CH3	H	H	H	H
	R27	H	H	H	H	H
	R28	H	H	H	H	H
	X	21	22	SO	SO	SO
	Y	N	N	N	CH	N
	Z	N	N	N	N	N
comp. no.	605	606	607	608	609	610	611
R	23	24	25	4-(CH3O) —C6H4	4-(CH3O) —C6H4	*see below	4-(CH3O) —C6H4
R1	chex	CH3	CN	CN	CN	CN	CN
R2	chex	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H	H
R4	H	H	H	H	H	H	H
R21	H	H	H	H	CH3	H	CH3
R27	H	H	H	H	H	H	H
R28	H	H	H	H	H	H	H
X	S	SO2	SO	SO2	SO	S	SO2
Y	N	N	N	CH	N	N	CH
Z	N	N	N	N	N	N	N
	comp. no.	612	613	614	615	616	617
	R	26	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	C6H5	*see below
	R1	CH3	CN	CN	CN	CN	CN
	R2	chex	chex	chex	chex	chex	chex
	R3	H	H	H	H	H	H
	R4	H	H	H	H	H	H
	R21	H	H	H	CH3	H	H
	R27	H	(S)-3-CH3	H	H	H	H
	R28	H	H	H	H	H	H
	X	SO2	SO	SO	SO	27	SO
	Y	N	N	CH	N	N	N
	Z	N	N	N	N	N	N
comp. no.	618	619	620	621	622	623
R	C6H5	*see below	2-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	28
R1	CH3	CH3	CN	29	CN	(R)-CH3
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	CH3	H	H	H	H	H
R27	H	H	H	H	(R)-2-CH3	2-CH3
R28	H	H	H	H	H	H
X	O	SO2	O	SO	SO2	O
Y	N	N	N	N	N	N
Z	N	N	N	N	N	N
comp. no.	624	625	626	627	628	629
R	*see below	4-(CH3O) —C6H4	*see below	*see below	4-(CH3O) —C6H4	30
R1	CN	—CN	CN	CN	CN	CH3
R2	chex	31	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	H	H
R27	H	H	H	H	(R)-2-CH3	(R)-2-CH3
R28	H	H	H	H	H	H
X	S	S	S	SO	SO	O
Y	N	N	N	N	N	N
Z	N	CH	N	N	N	N
comp. no.	630	631	632	633	634	635
R	*see below	*see below	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)
			—C6H4	—C6H4	—C6H4	—C6H4
R1	CN	CN	with R21 forms = O	CN	CN	32
R2	chex	chex	chex	33	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	—	H	H	H
R27	H	H	H	H	(R)-2-CH3	H
R28	H	H	H	H	H	H
X	SO	SO	S	SO	S	SO
Y	N	N	CH	N	N	N
Z	N	N	N	CH	N	N
	comp. no.	636	637	638	639	640	641
	R	34	35	4-(CH3O) —C6H4	chex	4-(HO) —C6H4	4-(CH3O) —C6H4
	R1	with R21	CN	with R21	CN	CN	with R21
		forms = O		forms = O			forms =
							N—OCH3
	R2	chex	chex	chex	chex	chex	chex
	R3	H	H	H	H	H	H
	R4	H	H	H	H	H	H
	R21	—	H	—	H	H	—
	R27	H	(R)-2-CH3	H	H	H	H
	R28	H	H	H	H	H	H
	X	S	SO2	SO2	SO2	S	SO
	Y	CH	N	CH	N	N	CH
	Z	N	N	N	N	N	N
comp. no.	642	643	644	645	646	647
R	C6H5	4-(CH3O)	4-(CH3O)	chex	4-(CH3O)	4-(CH3O)
		—C6H4	—C6H4		—C6H4	—C6H4
R1	(S)-CH3	CN	CN	CN	with R21forms = O	with R21forms =N—OCH3
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	—	—
R27	(R)-2-CH3	(S)-2-CH3	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO2	C═O	SO	SO	SO
Y	N	N	CH	N	CH	CH
Z	N	N	N	N	N	N
comp. no.	648	649	650	651	652	653
R	C6H5	chex	4-(CH3O)	C6H5	4-(CH3O)	4-(CH3O)
			—C6H4		—C6H4	—C6H4
R1	(R)-CH3	CN	CN	with R21	with R21	CH3
				forms = O	forms = O
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	—	—	—
R27	(R)-2-CH3	H	(R)-2-CH3	H	H	(R)-2-CH3
R28	H	H	H	H	H	H
X	SO2	S	SO	S	SO	S
Y	N	N	N	CH	CH	N
Z	N	N	N	N	N	N
comp. no.	654	655	656	657	658	659
R	C6H5	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(F)-C6H4
		—C6H4	—C6H4	—C6H4	—C6H4
R1	with R21	CN	(R)-CH3	with R21 forms	CN	with R21
	forms = CH2			36		forms = CH2
R2	chex	chex	chex	chex	37	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	CH3	H	—	H	—
R27	H	H	(R)-2-CH3	H	H	H
R28	H	H	H	H	H	H
X	SO	SO	SO2	SO	SO	SO
Y	CH	CH	N	CH	N	CH
Z	N	N	N	N	CH	N
comp. no.	660	661	662	663	664	665
R	C6H5	4-(CH3O) —C6H4	4-(F)-C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	38
R1	with R21	—CONH2	with R21	with R21	—COOCH3	with R21
	forms = O		forms = O	forms = CH2		forms = O
R2	chex	chex	chex	chex	39	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	H	—	—	H	—
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO	SO2	SO2	SO	S
Y	CH	CH	CH	CH	N	CH
Z	N	N	N	N	CH	N
comp. no.	666	667	668	669	670	671
R	C6H5	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(F)-C6H4	40
R1	with R21	(S)-CH3	—COOCH3	with R21	with R21	with R21 forms =
	forms = CH2			forms = N—OH	forms = O	O
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	H	H	—	—	—
R27	H	(R)-2-CH3	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO2	SO	SO	SO	SO
Y	CH	N	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	672	673	674	675	676	677
R	4-(CH3O) —C6H4	41	4-(CH3O) —C6H4	42	4-(CH3O) —C6H4	43
R1	—CF3	with R21	see note	with R21	with R21	with R21
		forms =		forms =	forms =	forms =
		CH		CH2	CH2	NOCH3
						Isomer A
R2	chex	chex	chex	chex	44	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	—	—	—	—	—
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO	S	SO	SO	SO	SO Isomer 1
Y	N	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	678	679	680	681	682	683
R	4-(CH3O) —C6H4	45	46	47	4-(CH3O) —C6H4	48
R1	F3C—	with R21	with R21	with R21	with R21	with R21
		forms = O	forms = O	forms = CH2	forms = CH2	forms = O
R2	chex	chex	chex	chex	4(C6H5)chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	—	—	—	—	—
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO	SO2	SO2	SO	S
Y	N	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	684	685	686	687	688	689
R	4(F)C6H4	4-(CH3O) —C6H4	49	4-(CF3) —C6H4	4-(CH3O) —C6H4	50
R1	with R21	with R21 forms = CH2	with R21	with R21	with R21	with R21
	forms = CH2		forms = O	forms = CH2	forms = CH2	forms = O
R2	chex	51	chex	chex	4(C6H5)chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	—	—	—	—	—
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	S	SO	SO	SO2	SO2
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	690	691	692	693	694	695
R	52	4-(CH3O) —C6H4	53	3-(CH3O) —C6H4	2-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	with R21	—CN	with R21	with R21	with R21	—CH3
	forms = CH2		forms = CH2	forms = O	forms = O
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	H	—	—	—	—CH3
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	S	SO	SO	SO2	SO2	SO2
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	696	697	698	699	700	701
R	2-(CH3O) —C6H4	54	4-benzyloxy phenyl	2-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	with R21	with R21	with R21	with R21	with R21	with R21
	forms = CH2	forms = O	forms = CH2	forms = O	forms = O	forms = O
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	—	—	—	—	—
R27	H	H	H	H	2-(CH3)	H
R28	H	H	H	H	H	H
X	O	SO	SO2	S	SO2	SO2—NH
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	702	703	704	705	706	707
R	4-(CH3O) —C6H5	55	3-(CH3O) —C6H5	4-(CH3O) —C6H5	4-(CH3O) —C6H5	4-(CH3O) —C6H5
R1	—CN	with R21	with R21	—CH3	with R21	(S)-C2H5
		forms = CH2	forms = O		forms = CH2
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	—	—	—CH3	—	H
R27	H	H	H	H	2(CH3)	(R)-2-(CH3)
R28	H	H	H	H	H	H
X	SO	SO2	SO	SO	SO2	SO2
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	708	709	710	711	712	713
R	4-(CH3O)	4-(CH3O)	3-(Cl)-C6H4	4(-CH3O)	see note 712.	4-(CH3O)
	—C6H4	—C6H5		—C6H4		—C6H4
R1	(R)-C2H5	with R21	CH3	with R21 forms = CH2	with R21	—CN
		forms = O			forms = O
R2	chex	chex	56	57	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	—	H	—	—	—CH3
R27	(R)-2-(CH3)	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO2	SO2	SO2	SO2	SO2
Y	N	CH	N	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	714	715	716	717	718	719
R	4-CH3O)	4-(CH3O)	4-(HO)	4-(CH3O)	4-(CH3O)	4-(CH3O)
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4
R1	(S)-2-	—CH3	with R21	with R21	with R21	with R21
	propyl	isomer 1	forms = O	forms = CH2	forms = O	forms = O
R2	chex	chex	chex	58	chex	59
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	—	—	—	—
R27	(R)-2(CH3)	(R)-2-n-C3H7	H	H	H	H
R28	H	H	H	H	H	H
X	SO2	SO2	SO2	SO2	—CONH—	SO2
Y	N	N	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	720	721	722	723	724	725
R	4-(CH3P)—C6H4	4-(CH3O) —C6H4	4-(CF3O) —C6H4	60	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	(R)-2-propyl	CH3	with R21	with R21 forms = O	—CH3	with R21 forms = O
			isomer 2	forms = O
R2	chex	chex	chex	chex	chex	61
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	—	—	—CN	—
R27	(R)-2(CH3)	(R)-2-n-	H	H	H	H
		propyl
R28	H	H	H	H	H	H
X	SO2	SO2	SO2	SO2	SO2	SO
Y	N	N	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	726	727	728	729	730	731
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4
R1	(S)-CH3	(S)-CH3	(S)-CH3	CH3	with R21	(S)-CH3
					forms = O
R2	cyclopentyl	cycloheptyl	cyclobutyl	62	chex	cyclopropyl
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	—	H
R27	(R)-2-(CH3)	3-(CH3)	(R)-2-(CH3)	H	(R)-2-(CH3)	(R)-2-(CH3)
R28	H	H	H	H	H	H
X	SO2	SO2	SO2	SO	SO2	SO2
Y	N	N	N	N	N	N
Z	N	N	N	CH	N	N
comp. no.	732	733	734	735	736	737
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4
R1	(S)-CH3	(S)-CH3	(S)-CH3	CH3	(S)-CH3	(S)-CH3
R2	cyclopentyl	cyclooctyl	cyclobutyl	63	64	cyclopropyl
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	H	H
R27	3(CH3)	(R)-2(CH3)	3(CH3)	H	(R)-2(CH3)	3(CH3)
R28	H	H	H	H	H	H
X	SO2	SO2	SO2	SO2	SO2	SO2
Y	N	N	N	N	N	N
Z	N	N	N	CH	N	N
comp. no.	738	739	740	741	742	743
R	3-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	44-(CH3O)	See note
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4	743
R1	(S)-CH3	(S)-CH3	with R21	(S)-CH3	(S)-CH3	CH3
			forms = CH2
R2	cycloheptyl	cyclooctyl	chex	chex	65	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	—	H	H	H
R27	(R)-2(CH3)	3(CH3)	with R28 forms	3-(CH3)	3-(CH3)	H
			3,5-(CH2)2—
R28	H	H	—	H	H	H
X	SO2	SO2	SO2	SO2	SO2	—CONH—
Y	N	N	CH	N	N	N
Z	N	N	N	N	N	N
comp. no.	744	745	746	747	748	749
R	See Note	See Note	See Note	See Note	4(-CH3O)	See Note
					—C6H4
R1	CH3	CH3	CN	CH3	—OH	CH3
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	H	H
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X —CONH—	—CONH—	S	O	SO	—CONH—
Y	N	N	N	N	CH	N
Z	N	N	N	N	N	N
comp. no.	750	751	752	753	754	755
R	See Note	See Note	See Note	4-(CH3O) —C6H4	66	4-(CH3O) —C6H4
R1	CH3	CH3	CN	67	with R21 forms = O	with R21 forms = O
R2	chex	chex	chex	chex	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	H	H	H	H	—	—
R27	H	H	H	H	H	1-(CH3)
R28	H	H	H	H	H	H
X	—CONH—	—CONH—	SO2	SO	SO	SO
Y	N	N	N	N	CH	CH
Z	N	N	N	N	N	N
comp. no.	756	757	758	759	760	761
R	4-(CH3O) —C6H4	68	4-(CH3O) —C6H4	69	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	OH	with R21 forms = O	—CH3OH	OH	with R21 forms = CH2	OH
R2	chex	chex	chex	chex	70	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	2-propyl	—	H	CH3	—	ethyl
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO	SO	S	SO	SO2	SO
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	762	763	764	765	766	767
R	71	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	with R21 forms = CH2	with R21 forms = CH2	72	with R21 forms = CH2	—CH2—OH	—CH2—OH
R2	chex	73	chex	74	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	—	H	—	H	H
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO	SO	S	S	SO2	SO
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp.
no.	768	769	770	771	772	773
R	75	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O)—C6H4	76	77
R1	with R21 forms =	—CH2—OC—O	with R21	CH3	with R21 forms =	with R21 forms =
	N—OCH3	CH3	forms = CF2		N—OCH3	N—OCH3
	Isomer B				Isomer A	Isomer B
R2	chex	chex	chex	78	chex	chex
R3	H	H	H	H	H	H
R4	H	H	H	H	H	H
R21	—	H	—	H	—	—
R27	H	H	H	H	H	H
R28	H	H	H	H	H	H
X	SO Isomer 2	SO	SO2	SO2	SO Isomer 2	SO Isomer 1
Y	CH	CH	CH	CH	CH	CH
Z	N	N	N	N	N	N
comp. no.	774	775	776	777	778
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	omit
	—C6H4	—C6H4	—C6H4	—C6H4
R1	CH3—O—CO—	with R21	with R21 forms = CF2	CH3
	CH3	forms = CH2
R2	chex	chex	79	80
R3	H	H	H	H
R4	H	H	H	H
R21	H	—	—	H
R27	H	H	H	(R)-2(CH3)
R28	H	H	H	H
X	SO2	SO	SO2	SO2
Y	CH	CH	CH	CH
Z	N	N	N	N
comp. no.	779	780	781	782	783
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4
R1	n-butyl	(CH3)2—C6H4	with R21 forms =	with R21 forms =	(S)-CH3
	isomer 1	isomer 1	CH2	CH2
R2	chex	chex	81	82	83
R3	H	H	H	H	H
R4	H	H	H	H	H
R21	H	H	—	—	H
R27	(R)-2-(CH3)	(R)-2-CH3	H	H	(R)-2-CH3
R28	H	H	H	H	H
X	SO2	SO2	SO2	S	SO2
Y	N	N	CH	CH	N
Z	N	N	N	N	N
comp. no.	784	785	786	787	788
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)	4-(CH3O)
	—C6H4	—C6H4	—C6H4	—C6H4	—C6H4
R1	n-butyl	—(CH2)3	cyclopentyl	with R21 forms = CH2	(S)-CH3
	isomer 2	—C6H5	isomer 1
		isomer 2
R2	chex	chex	chex	84	85
R3	H	H	H	H	H
R4	H	H	H	H	H
R21	H	H	H	—	H
R27	(R)-2-CH3	(R)-2-CH3	(R)-2-CH3	H	(R)-2-CH3
R28	H	H	H	H	H
X	SO2	SO2	SO2	SO	SO2
Y	N	N	N	CH	N
Z	N	N	N	N	N
comp. no.	789	790	791	792	793
R	4-(CH3O)	4-(CH3O)	4-(CH3O)	(see	4-(CH3O)
	—C6H4	—C6H4	—C6H4	(note	—C6H4
				792)-
R1	(S)-CH3	(R)-2-CH3	(S)-CH3	CN	(S)-CH3
R2	86	87	88	chex	H
R3	H	H	H	H	H
R4	H	H	H	H	H
R21	H	H	H	H	H
R27	(R)-2-(CH3)	(R)-2-CH3	(R)-2-CH3	H	(R)-2-CH3
R28	H	H	H	H	H
X	S	S	SO2	SO	SO2
Y	N	N	N	N	N
Z	N	N	N	N	N
comp. no.	794	795	796	797	798
R	4-(CH3O) —C6H4	89	4-(CH3O) —C6H4	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	(S)-CH3	(R)-CH3	(S)-CH3	(S)-CH3	CH3
R2	90	chex	91	92	1-CH3-chex
R2	H	H	H	H	H
R4	H	H	H	H	H
R21	H	H	H	H	H
R27	(R)-2-(CH3)	(R)-2-(CH3)	(R)-2-(CH3)	(R)-2-CH3	H
R28	H	H	H	H	H
X	SO2	SO2	S	SO2	SO2
Y	N	N	N	N	N
Z	N	N	N	N	N
comp. no.	799	800	801	802	803
R	4-(CH3O) —C6H4	4-(CH3O) —C6H4	93	4-(CH3O) —C6H4	4-(CH3O) —C6H4
R1	(R)-CH3	CH3	(S)-CH3	CH3	(S)-CH3
R2	94	chex	chex	chex	4-(OH)-chex
R3	H	H	H	H	H
R4	H	H	H	H	H
R21	H	CH3	H	CH3	H
R27	(R)-2-CH3	2-CH3	(R)-2-CH3	2-CH3	3-CH3
R28	H	H	H	H	H
X	SO2	SO2	SO2	S	SO2
Y	N	CH	N	CH	N
Z	N	N	N	N	N
	comp. no.	804	805
	R	4-(CH3O) —C6H4	95
	R1	(S)-CH3	(S)-CH3
	R2	trans 4-(OH)-chex	96
	R3	H	H
	R4	H	H
	R21	H	H
	R27	(R)-2-(CH3)	(R)-2-CH3
	R28	H	H
	X	SO2	SO2
	Y	N	N
	Z	N	N
*610. R is
97
*617. R is
98
*619. R is
99
*624. R is
100
626 and 627 R is
101
*630. R is
102
*631. R is
103
674. R1 and R21 together with the carbon atom to which they are attached from
104
712. R is
105
743. R is
106
744. R is
107
745. R is
108
746. R. is 4-[CH3—N(CH3)—COO]—C6H4
747. R is
109
749. R is
110
750 R is
111
751. R is
112
752. R is 4-[(CH3)2N—COO]—C6H4—
792. R is 4-[(CH3)2NCOO]-C6H4—

[0044] Another aspect of the invention is a pharmaceutical composition which comprises a compound having structural formula I as defined above in combination with a pharmaceutically acceptable carrier.

[0045] Another aspect of the invention is the use of a compound formula I for the preparation of a pharmaceutical composition useful in the treatment of cognitive disorders and neurodegenerative diseases such as Alzheimer's disease.

[0046] Yet another aspect of the invention comprises a method for making a pharmaceutical composition comprising mixing a compound of formula I with a pharmaceutically acceptable carrier.

[0047] Another aspect of this invention is a method for treating a cognitive or neurodegenerative disease comprising administering to a patient suffering from said disease an effective amount of a compound of formula I.

[0048] Another aspect of this invention is a method for treating cognitive and neurodegenerative diseases, such as Alzheimer's disease with a compound of formula I in combination with an acetylcholinesterase inhibitor.

[0049] Another aspect of this invention is a method for treating a cognitive or neurodegenerative disease comprising administering to a patient suffering from said disease an effective amount of a combination of a compound capable of enhancing acetylcholine release (preferably an m2 or m4 selective muscarinic antagonist) with an acetycholinesterase inhibitor.

[0050] Another aspect of this invention is a kit comprising in separate containers in a single package pharmaceutical compounds for use in combination to treat cognitive disorders in one container a compound of formula I or a compound capable of enhancing acetylcholine release (preferably an m2 or m4 selective muscarinic antagonist) in a pharmaceutically acceptable carrier and in a second container an acetylcholinesterase inhibitor in a pharmaceutically acceptable carrier, the combined quantities being an effective amount.

BRIEF DESCRIPTION OF THE DRAWINGS

[0051] FIG. 1 illustrates the dose related effects of i.p. administration of a compound of this invention on acetyIchioline (ACh) release from cortex of conscious rat.

[0052] FIG. 2 is a plot similar to FIGS. 1 for ACh release from the striatum following i.p. administration.

[0053] FIG. 3 illustrates the effect of 3 mg/kg of Tacrine (i.p. administration) on ACh release from striatum of conscious rat.

[0054] FIG. 4 is a plot similar to FIG. 4 for 1 mg/kg of a compound of this invention (i.p. administration).

[0055] FIG. 5 is a plot similar to FIG. 4 for 1 mg/kg of a compound of this invention in combination with 3 mg/kg of Tacrine (both i.p. administration).

DETAILED DESCRIPTION

[0056] Except where stated otherwise the following definitions apply throughout the present specification and claims. These definitions apply regardless of whether a term is used by itself or in combination with other terms. Hence the definition of “alkyl” applies to “alkyl” as well as the “alkyl” portions of “alkoxy”, “haloalkyl”, etc.

[0057] Alkyl represents a straight or branched saturated hydrocarbon chain having 1 to 20 carbon atoms, more preferably 1 to 8 carbon atoms.

[0058] Alkenyl represents a straight or branched hydrocarbon chain of from 2 to 15 carbon atoms, more preferably 2 to 12 carbon atoms, having at least one carbon-to-carbon double bond.

[0059] Alkynyl represents a straight or branched hydrocarbon chain of from 2 to 10 carbon atoms, more preferably 2 to 8 carbon atoms, having at least one carbon-to-carbon triple bond.

[0060] Cycloalkyl represents a saturated carbocyclic ring having 3 to 12 carbon atoms.

[0061] Cycloalkenyl represents a carbocyclic ring having from 5 to 8 carbon atoms and at least one carbon-to-carbon double bond in the ring.

[0062] Bicycloalkyl represents a saturated bridged carbocyclic ring having 5 to 12 carbon atoms.

[0063] Acyl represents a radical of the formula 113

[0064] wherein alkyl is as defined previously.

[0065] Halo represents fluoro, chloro, bromo or iodo.

[0066] Aryl represents phenyl of naphthyl.

[0067] Polyhalo represent substitution of at least 2 halo atoms to the group modified by the term “polyhalo”.

[0068] Hydroxyguanidino represents a group having the formula 114

[0069] Azabicyclo represents a saturated bridged ring containing from 4 to 8 carbon atoms and at least one nitrogen atom.

[0070] Sulfonyl represents a group of the formula —SO2—.

[0071] Sulfinyl represents a group of the formula —SO—.

[0072] Alkylene represents a group having the formula —(CH2)q, wherein q is an integer of from 1 to 20,

[0073] Naturally occurring amino acid (NOAA) means an acid selected from the group consisting of alanine(ala), arginine (arg), asparagine (asn), aspartic acid (asp), cysteine (cys), glutamine (gin), glutamic acid (glu), glycine (gly), histadine (his), isoleucine (ile), leucine (leu), lysine (lys), methionine (met), phenylalanine (phe), proline (pro), serine (ser), threonine (thr), tryptophan (trp), tyrosine (tyr), and valine (val).

[0074] Nitrogen protecting group (Prot) means a group capable of protecting a nitrogen on a naturally occurring amino acid (or an enantiomer thereof) from reaction. Preferred nitrogen protecting groups are carbobenzyloxy (CBZ), CH3OCO(CH2)9CO, and t-butcyxycarbonyl. Of course any operable nitrogen protecting group is included.

[0075] When a variable appears more than once in the structural formula, for example R5 when X is —C(OR5)2—, the identity of each variable appearing more than once may be independently selected from the definition for that variable.

[0076] Compounds of this invention may exist in at least two stereo configurations based on the asymmetric carbon to which R1 is attached, provided that R1 and R21 are not identical. Further stereoisomerism is present when X is SO, or C(OR5)2 (when the two R5 groups are not the same) or when R is —CR5═C═CR6. Also within formula I there are numerous other possibilities for stereoisomerism. All possible stereoisomers of formula I are within the scope of the invention.

[0077] Compound of formula I can exist in unsolvated as well as solvated forms, including hydrated forms. In general, the solvated forms, with pharmaceutically acceptable solvents such as water, ethanol and the like, are equivalent to the unsolvated forms for purposes of this invention.

[0078] A compound of formula I may form pharmaceutically acceptable salts with organic and inorganic acids. Examples of suitable acids for salt formation are hydrochloric, sulfuric, phosphoric, acetic, citric, malonic, salicylic, malic, fumaric, succinic, ascorbic, maleic, methanesulfonic and other mineral and carboxylic acids well known to those skilled in the art. The salts are prepared by contacting the free base forms with a sufficient amount of the desired acid to produce a salt in the conventional manner. The free basis forms may be regenerated by treating the salt with a suitable dilute aqueous base solution such as dilute aqueous sodium hydroxide, potassium carbonate, ammonia or sodium bicarbonate. The free base forms differ from their respective salt forms somewhat in certain physical properties, such as solubility in polar solvents, but the salts are otherwise equivalent to their respective free base forms for purposes of the invention.

[0079] Compound in accordance with formula I may be produced by processes known to those skilled in the art as shown by the following reaction steps:

[0080] Process A (for compounds of formula I where R21 is H and X is O, SO, or SO2) 115

[0081] wherein L1 is a leaving group and L2 is H or an alkali metal and Y, Z, R, R1, R2, R3, R4, R27 and R28 are as defined above for formula I, and X is O, SO or SO2.

[0082] Process A is preferably carried out neat or in a solvent such as DMF, DMSO, or acetonitrile, at temperatures, ranging from 0° C. to 110° C. for a period of about 1-24 hours. It is preferable that L1 be a chloride leaving group, but other leaving groups such as bromide, or mesylate, will suffice. It is preferable that L2 be hydrogen.

[0083] Starting materials of formula II when X is O, SO, or SO2 may be formed by the following reaction sequence 116

[0084] In step (a) the chloride compound is reacted with sodium hydroxide in presence of zinc in solvent such as water, at 50-95° C. for 1-3 hours. Alternatively R—X—H is reacted with NaH in solvent such as THF or DMF at 0° to room temperature for 1-3 hours. In step (b) the substituted benzaldehyde is added to the reaction mixture from step (a) and the reaction carried out for 1-24 hours at 20-70° C. In step (c) X2 represents e.g. chloride or bromide. The reaction with R1MgX2 is carried out in THF or diethyl ether solvent at 0° C. -70° C. for 1-24 hours. Reaction with SOCl2 is preferably done in excess thionyl chloride as solvent at 25-70° C. for 1-24 hours. Compounds of formula III are readily available. Some reaction schemes for making other compounds of formula II are shown below: 117

[0085] wherein L4 is a leaving group and L2 is H or alkali metal and X, Y, Z, R, R1, R2, R3, R4, R21, R27 and R28 are as defined above for formula I.

[0086] Process B is preferably carried out in solvent such as DMF at about 25 to 120° C. for about 1-24 hours. It is preferred that L2 be Na or hydrogen and that L4 be a chloride leaving group.

[0087] Compounds of formula IV may be produced by the following reaction scheme: 118

[0088] In the above reactions scheme R1A is preferably in accordance with the definition of R7 for formula I.

[0089] Step (d) may be performed in acetone or DMF solvent at 20-100° C., for 1-24 hours under basic conditions, e.g. with K2CO3.

[0090] Step (e) may be performed neat or in methylene chloride, at 20-70° C., for 1-24 hours.

[0091] Step (f) may be performed in ethanol or methanol at 25-70° C. for 1-24 hours.

[0092] Process C (for compounds of formula I where R21 is H) 119

[0093] wherein L6 is a leaving group and L2 is H or alkali metal and X, Y, Z, R, R1, R2, R3, R4, R27 and R28 are as defined above for formula I.

[0094] Process C is preferably carried out in solvent such as DMF, DMSO or acetonitrile at about 0 to 110° C. for 1-24 hours. It is preferable that L2 be hydrogen and that L6 be a chloride leaving group.

[0095] Compounds of formula VI may be produced by the following reaction scheme: 120

[0096] Other compounds of formula VI may be produced by similar reactions.

[0097] Process D (for compounds of formula I where R21 is H) 121

[0098] werein Y1 is H or alkyl, and compound X is (alkyl)2AlCN or a Grignard reagent.

[0099] Process D is preferably carried out by first treating a compound of formula VIII, titanium tetrachloride (TiCl4) or titanium tetra isopropoxide, and a compound of formula IX neat or in solvent such as methylene chloride for about 1-24 hours at 20 to 70° C. Finally a compound of formula X is added and the mixture is stirred for 1-24 hours at 20-70° C. Compounds of formula VIII may be produced by steps (a) and (b) of process A.

[0100] Process E (for compounds wherein R21 is not H) 122

[0101] In the above reaction L is a leaving group. the reaction is performed insolvent, e.g. THF, at −70 C to room temperature for ½ to 12 hours.

[0102] Process F (for compounds of structure XI or XII when Y and Z are both N, especially for non-racemic compounds where R1 and R27 are both CH3) 123

[0103] Reagents: a: (CF3CO)2O; b: dibromodimethylhydantoin, CH3SO3H; c: MeLi, then n-Buli, then RSO2F; d: NaOH; e: R27CH(OSO2CF3)CO2Et, K2CO3; f: ICH2CO2Et, Na2CO3; g: LiAlH4; h: AcOCH2COCl; i: BH3.Me2S.

[0104] Reaction of diol (8) with thionyl chloride gives a mixture of chlorides (10), which are in equilibrium with each other. This mixture is reacted with primary amines to afford compounds of the invention (11) and (12). 124

[0105] When the starting material 1 and reagent R27CH(OSO2CF3)CO2Et are optically pure or enriched, the products 11 and 12 are non-racemic.

[0106] Process G

[0107] For compounds of formula I where R1 is alkyl, R21 is H, and Y is N, especially compounds of this type when X is SO2 and the carbon to which R1 and R21 are attached is not racemic. 125

[0108] The above reactions may be followed if necessary or desired by one or more of the following steps; (a) removing any protective groups from the compound so produced; (b) converting the compound so-produced to a pharmaceutically acceptable salt, ester and/or solvate; (c) converting a compound in accordance with formula I so produced to another compound in accordance with formula I, and (d) isolating a compound of formula I, including separating stereoisomers of formula I.

[0109] Based on the foregoing reaction sequence, those skilled in the art will be able to select starting materials needed to produce any compound in accordance with formula I.

[0110] In the above processes it is sometimes desirable and/or necessary to protect certain groups during the reactions. Conventional protecting groups, familiar to those skilled in the art, are operable. After the reaction or reactions, the protecting groups may be removed by standard procedures.

[0111] The compounds of formula I exhibit selective m2 and/or m4 muscarinic antagonizing activity, which has been correlated with pharmaceutical activity for treating cognitive disorders such as Alzheimers disease and senile dementia.

[0112] The compounds of formula I display pharmacological activity in test procedures designated to indicate m1 and m2 muscarinic antagonist activity. The compounds are non-toxic at pharmaceutically therapeutic doses. Following are descriptions of the test procedures.

MUSCARINIC BINDING ACTIVITY

[0113] The compound of interest is tested for its ability to inhibit binding to the cloned human m1, m2, m3, and m4 muscarinic receptor subtypes. The sources of receptors in these studies were membranes from stably transfected CHO cell lines which were expressing each of the receptor subtypes. Following growth, the cells were pelleted and subsequently homogenized using a Polytron in 50 volumes cold 10 mM Na/K phosphate buffer, pH 7.4 (Buffer B). The homgenates were centrifuged at 40,000×g for 20 minutes at 4° C. The resulting supernatants were discarded and the pellets were resuspended in Buffer B at a final concentration of 20 mg wet tissue/ml. These membranes were stored at −80° C. until utilized in the binding assays described below.

[0114] Binding to the cloned human muscarinic receptors was performed using 3H-quinuclidinyl benzilate (QNB) (Watson et al., 1986). Briefly, membranes (approximately 8, 20, and 14 μg of protein assay for the m1, m2, and m4 containing membranes, respectively) were incubated with 3H-QNB (final concentration of 100-200 pM) and increasing concentrations of unlabeled drug in a final volume of 2 ml at 25° C. for 90 minutes. Non-specific binding was assayed in the presence of 1 μM atropine. The incubations were terminated by vacuum filtration over GF/B glass fiber filters using a Skatron filtration apparatus and the filters were washed with cold 10 mM Na/K phosphate butter, pH 7.4. Scintillation cocktail was added to the filters and the vials were incubated overnight. The bound radioligand was quantified in a liquid scintillation counter (50% efficiency). The resulting data were analyzed for IC50 values (i.e. the concentration of compound required to inhibit binding by 50%) using the EBDA computer program (McPherson, 1985). Affinity values (Ki) were then determined using the following formula (Cheng and Prusoff, 1973); 1$K_i=\frac{{\mathrm{IC}}_{50}}{1+\left[\frac{\mathrm{concentration}\mathrm{of}\mathrm{radioligand}}{\mathrm{affinity}\left(K_D\right)\mathrm{of}\mathrm{radioligand}}\right]}$

[0115] Hence a lower value of Ki indicates greater binding affinity.

[0116] The following publications, the entire contents of which are incorporated herein by reference, explain the procedure in more detail.

[0117] Cheng, Y. -C. and Prusoff, W. H., Relationship between the inhibitory constant (Ki) and the concentration of inhibitor which causes 50 per cent inhibition (IC50) of an enzymatic reaction. Biochem. Pharmacol. 22: 3099-3108, 1973.

[0118] McPherson, G. A. Kinetic, EBDA, Ligand, Lowry: A Collection of Radioligand Binding Analysis Programs. Elsevier Science Publishers BV, Amsterdam, 1985.

[0119] Watson, M. J, Roeske, W. R. and Yamamura, H. I. [3H] Pirenzepine and (−)[3H)quinuclidinyl benzilate binding to rat cerebral cortical and cardiac muscarinic cholinergic sites. Characterization and regulation of antagonist binding to putative muscarinic subtypes. J. Pharmacol. Exp. Ther. 237: 411-418, 1986.

[0120] To determine the degree of selectivity of a compound for binding the m2 receptor, the Ki value for m1 receptors was divided by the Ki value for m2 receptors. A higher ratio indicates a greater selectivity for binding the m2 muscarinic receptor.

MICRODIALYSIS METHODOLOGY

[0121] The following procedure is used to show that a compound functions as an m2 antagonist.

[0122] Surgery: For these studies, male Sprague-Dawley Rats (250-350 g) were anesthetized with sodium pentobarbital (54 mg/kg, ip) and placed on a Kopf sterotaxic apparatus. The skull was exposed and drilled through to the dura at a point 0.2 mm anterior and 3.0 mm lateral to the bregma. At these coordinates, a guide cannula was positioned at the outer edge of the dura through the drilled opening, lowered perpendicularly to a depth of 2.5 mm, and permanently secured with dental cement to bone screws. Following the surgery, rats were given ampicillin (40 mg/kg, ip) and individually housed in modified cages. A recovery period of approximately 3 to 7 days was allowed before the microdialysis procedure was undertaken.

[0123] Microdialysis: All of the equipment and instrumentation used to conduct in vivo microdialysis was obtained from Bioanalytical Systems, Inc. (BAS). The microdialysis procedure involved the insertion through the guide cannula of a thin, needle-like perfusable probe (CMA/12,3 mm×0.5 mm) to a depth of 3 mm in striatum beyond the end of the guide. The probe was connected beforehand with tubing to a microinjection pump (CMA-/100). Rats were collared, tethered, and, following probe insertion, were placed in a large, clear, plexiglass bowl with litter material and access to food and water. The probe was perfused at 2 μl/min with Ringer's buffer (NaCl 147 mM; KCl 3.0 mM; CaCl2 1.2 mM; MgCl2 1.0 mM) containing 5.5 mM glucose, 0.2 mM L-ascorbate, and 1 μM neostigmine bromide at pH 7.4). To achieve stable baseline readings, microdialysis was allowed to proceed for 90 minutes prior to the collection of fractions. Fractions (20 μl) were obtained at 10 minute intervals over a 3 hour period using a refrigerated collector (CMA/170 or 200). Four to five baseline fractions were collected, following which the drug or combination of drugs to be tested was administered to the animal. Upon completion of the collection, each rat was autopsied to determine accuracy of probe placement.

[0124] Acetylcholine (ACh) analysis: The concentration of ACh in collected samples of microdialysate was determined using HPLC/electrochemical detection. Samples were auto-injected (Waters 712 Refrigerated Sample Processor) onto a polymeric analytical HPLC column (BAS, MF-6150) and eluted with 50 mM Na2HPO4, pH 8.5. To prevent bacterial growth, Kathon CG reagent (0.005%) (BAS) was included in the mobile phase. Eluent from the analytical column, containing separated ACh and choline, was then immediately passed through an immobilized enzyme reactor cartridge (BAS, MF-6151) coupled to the column outlet. The reactor contained both acetylcholinesterase and choline oxidase covalently bound to a polymeric backbone. The action of these enzymes on ACh and choline resulted in stoichiometric yields of hydrogen peroxide, which was electrochemically detected using a Waters 460 detector equipped with a platinum electrode at a working potential of 500 mvolts. Data acquisition was carried out using an IBM Model 70 computer equipped with a microchannel IEEE board. Integration and quantification of peaks were accomplished using “Maxima” chromatography software (Waters Corporation). Total run time per sample was 11 minutes at a flow rate of 1 ml/min. Retention times for acetylcholine and choline were 6.5 and 7.8 minutes, respectively. To monitor and correct for possible changes in detector sensitivity during chromatography, ACh standards were included at the beginning, middle and end of each sample queue.

[0125] Increases in ACh levels are consistent with presynaptic m2 receptor antagonism.

RESULTS OF THE TESTS

[0126] For compound numbers 169, 227(−), 289, 269, 214, 232, 123, 236, 296, 300, 301, 302, 304, and 305:

[0127] Ki, nM, m1: 2.1 to 224

[0128] Ki, nM, m2: 0.05 to 16.6

[0129] m2 selectivity ration (Ki, m1/Ki, m2)=9.3 to 42

[0130] Ki, nM, m4: 0.33 to 36

[0131] m4 selectivity ration (Ki, m1/Ki, m4): 3 to 12

[0132] For the persently preferred compounds, compound numbers 615, 633, 622, 650, 667, 656, 658, 757, 763, 760, 690, 711, 719, 726, 714, 777, 795, and 801:

[0133] Ki, nM, m2=0.03 to 0.48

[0134] Selectivity:

[0135] m1/m2=30 to 68

[0136] m3/m2=5 to 66

[0137] m4/m2=2 to 10.

[0138] Presently the most preferred compounds are numbers 667, 760, 801, and 805.

[0139] Numerous other compounds in accordance with formula I were tested with the following range of results:

[0140] Ki binding to m1 receptor, nM: 0.01 to 4770 with undetermined values up to >4200. An undetermined value occurred when a Ki was not completely determined, but was found to be above some value of up to 4200 nM.

[0141] Ki binding to m2 receptor, nM: 0.01 to 1525 with undetermined values up to >4600. An undetermined value occurred when a Ki was not completely determined, but was found to be above some value of up to 4600 nM.

[0142] m2 Selectivity Ratio [Ki for m1/Ki for m2]

[0143] 0.3 to 41.5 without regard to any undetermined Ki values.

[0144] When compound No. 169 from the table of compounds was administered the following increases in ACh release above baseline levels were measured.

Dosage mg/kg   Peak ACh release
(Compound 169) as % increase over Baseline
From Cortex of Conscious Rat (i.p. administration)
               (FIG. 1)
30             1500
10             400
1              75
From Striatum of Conscious Rat (i.p. Administration)
               (FIG. 2)
30             270
10             150
3              125
1              30
0.1            10

[0145] Oral administration of compound 169 also caused a significant increase in ACh release.

[0146] We have made the surprising discovery that compounds of formula I in combination with an acetylcholinesterase (ACh'ase) inhibitor have a synergistic effect on ACh release, as shown below. Here Tacrine was used as the ACh'ase inhibitor.

From Striatum of Conscious Rat
                            Peak ACh release
                            as % increase over Baseline
Dose                        (FIGS. 3 to 5)
Tacrine 3 mg/kg (i.p.)      30 (FIG. 3)
Compound 169 1 mg/kg (i.p.) 40 (FIG. 4)
Tacrine 3 mg/kg and         130 (FIG. 5)
Compound 169 1 mg/kg (i.p.)

[0147] As shown immediately above, when administered in combination, compound 169 and tacrine produce a synergistic increase in ACh release.

[0148] The present invention also relates to achieving similar synergistic results by administering a compound of formula I in combination with any other ACh'ase inhibitor including, but not limited to, E-2020 (available from Eisai Pharmaceutical) and heptylphysostigmine.

[0149] The present invention also relates to achieving similar synergistic results by administering any compound capable of enhancing ACh release, such as scopolamine or QNB in combination with an ACh'ase inhibitor. Preferably the ACh release enhancing compound is an m2 selective muscarinic antagonist, i.e. one having a (Ki for m1/Ki for m2) ratio greater than 1 or an m4 selective muscarinic antagonist (Ki for m1/Ki for m4 greater than 1). The m2 or m4 selective muscarinic antagonists for practicing this aspect of the invention include without limitation 3-α-chloroimperialine, AF-DX 116, AF-DX 384, BIBN 99 (these three compounds being available from Boehringer-Ingleheim), tripitramine, and himbacine.

[0150] For preparing pharmaceutical compositions from the compounds of formula I, compounds capable of enhancing ACh release, and ACh'ase inhibitors, pharmaceutically acceptable, inert carriers are admixed with the active compounds. The pharmaceutically acceptable carriers may be either solid or liquid. Solid form preparations include powders, tablets, dispersible granules, capsules, cachets and suppositories. A solid carrier can be one or more substances which may also act as dilutents, flavoring agents, solubilizers, lubricants, suspending agents, binders or tablet disintegrating agents; it may also be an encapsulating material.

[0151] Liquid form preparations include solutions, suspensions and emulsions. As an example may be mentioned water or water-propylene glycol solutions for parenteral injection.

[0152] Also included are solid form preparations which are intended to be converted, shortly before use, to liquid form preparations for either oral or parentertal administration. Such liquid forms include solutions, suspensions and emulsions. These particular solid form preparations are most conveniently provided in unit dose form and as such are used to provide a single liquid dosage unit.

[0153] The invention also contemplates alternative delivery systems including, but not necessarily limited to, transdermal delivery. The transdermal compositions can take the form of creams, lotions and/or emulsions and can be included in a transdermal patch of the matrix or reservoir type as are conventional in the art for this purpose.

[0154] Preferably, the pharmaceutical preparation is in unit dosage form. In such form, the preparation is subdivided into unit doses containing appropriate quantities of the active components. The unit dosage form can be a packaged preparation, the package containing discrete quantities of preparation such as packeted tablets, capsules and powders in vials or ampules. The unit dosage form can also be a capsule, cachet or tablet itself, or it may be the appropriate number of any of these in a packaged form.

[0155] The quantity of active compound in a unit dose preparation may be varied or adjusted from 1 mg to 100 mg according to the particular application and the potency of the active ingredient and the intended treatment. This would correspond to a dose of about 0.001 to about 20 mg/kg which may be divided over 1 to 3 administrations per day. The composition may, if desired, also contain other therapeutic agents.

[0156] The dosages may be varied depending on the requirement of the patient, the severity of the condition being treating and the particular compound being employed. Determination of the proper dosage for a particular situation is within the skill of those in the medical art. For convenience, the total daily dosage may be divided and administered in portions throughout the day or by means providing continuous delivery.

[0157] When a compound of formula I or a compound capable of enhancing ACh release is used in combination with an acetylcholinesterase inhibitor to treat cognitive disorders these two active components may be co-administered simultaneously or sequentially, or a single pharmaceutical composition comprising a compound of formula I or a compound capable of enhancing ACh release and an acetylcholinesterase inhibitor in a pharmaceutically acceptable carrier can be administered. The components of the combination can be administered individually or together in any conventional oral or parenteral dosage form such as capsule, tablet, powder, cachet, suspension, solution, suppository, nasal spray, etc. The dosage of the acetylcholinesterase inhibitor may range from 0.001 to 100 mg/kg body weight.

[0158] The invention disclosed herein is exemplified by the following preparation and examples which should not be construed to limit the scope of the disclosure. Alternative mechanistic pathways and analogous structures may be apparent to those skilled in the art.

PREPARATIONS

Preparation 1

[0159] 126

[0160] 21 .4 g (130 mmol) of 1 and 15.0 g (108.6 mmol) of 2 were placed in a round bottom flask. DMSO (100 ml) was added and the mixture was warmed to 130° C. where it was stirred for 70 hours. The reaction was cooled and poured into 400 g of ice and stirred thoroughly. The mixture was filtered and a white precipitate was collected which was washed with water. The solid was recrystallized from ethanol. 127

[0161] Compound 3 (13.72 g, 52.7 mmol) was dissolved in methanol (100 ml) and cooled to 0° C. where NaBH4 (1.29, 31.6 mmol) was added in small portions. The mixture was stirred for one half hour, then warmed to reflux, stirred for 4 hours, and cooled to room temperature. The solvent was removed on a rotary evaporator. The residue was dissolved in ethyl acetate (400 ml) and washed with water and brine, dried over Na2SO4 and then filtered. The solvent was removed with a rotary evaporator. 128

[0162] A CH2Cl2 (120 ml) solution of 4 (14 g, 53 mmol) was cooled to 0° C. and SOCl2 (7.8 ml, 107 mmol), in 20 ml CH2Cl2 was added over a 30 minute period. The mixture was warmed to room temperature and stirred overnight. The volatiles were removed on a rotary evaporator and the residue dissolved in 500 ml ethyl acetate. The organic solution was washed with water, saturated with NaHCO3, and brine. The mixture was dried over Na2SO4, filtered and the solvent was removed on a rotary evaporator.

[0163] Preparation 2 129

[0164] Compound 6 (25 g, 180 mmol) was dissolved in 80 ml DMF and cooled to 0° C. Sodium hydride (7.2 g 60% dispersion in mineral oil) was added under nitrogen. Stirring was continued for 20 minutes then the reaction mixture was warmed to room temperature when compound 5 (20 g, 180 mmol), dissolved in 40 ml DMF, was added with syringe. The solution was heated to 100° C. and stirred for 3 hours, then cooled to room temperature. DMF was removed with a rotary evaporator, then 250 ml water was added and the pH adjusted with NaOH to 12. The solution was extracted with ethyl acetate, dried over Na2SO4 and filtered. The solvent was then removed with a rotary evaporator. 130

[0165] Compound 7 (22 g, 100 mmol) was dissolved in 450 ml EtOH, and cooled to 0° C. NaBH4 (1.9 g, 51 mmol) was added in portions. The mixture was warmed to room temperature and stirred overnight. Water (300 ml) was added and then removed on a rotary evaporator. Ethyl acetate was added to the residue which was then washed with water. The organic layer was dried over Na2SO4, filtered, and removed with a rotary evaporator. 131

[0166] Compound 8 (22 g, 100 mmol) was dissolved in 400 ml CH2Cl2 and cooled to 0° C. SOCl2 (9 ml, 120 mmol) was dissolved in CH2Cl2 (50 ml) and added to compound 8 with a dropping funnel, under nitrogen. After addition was complete, the mixture was stirred at 0° C. for ½ an hour, then at room temperature for 2 hours. The solution was decanted into an Erlenmeyer flask to remove the precipitate. 10% NaHCO3 was added until the pH of the aqueous layer was 8. The layers were separated and the CH2Cl2 layer was dried with MgSO4. The layer was then filtered and the solvent was removed on a rotary evaporator.

[0167] Preparation 3 132

[0168] Compound 10 (54 g, 400 mmol) was dissolved in 500 ml DMF and cooled to 0° C. NaO—CH3 (20.5 g) was added in portions with stirring. The ice bath was removed and compound 11 (68.4 g, 400 mmol) was added with stirring. The mixture stirred at room temperature for 3 hours, then at 80° C. for 1 hour, and cooled to room temperature. The DMF solution was concentrated to 200 ml, then 400 ml water and 300 ml ethyl acetate was added with stirring by a mechanical stirrer. The pH was made basic with NaOH, and the organic layer was separated, and dried over MgSO4. The solution was filtered and the solvent was then removed by a rotary evaporator. 133

[0169] Compound 12 (33.4 g, 147 mmol) was dissolved in 1L CH2Cl2. Compound 13 (25 g, 148 mmol) and triethylamine (21 ml) were added next. To this solution was added TiCl4 (75 ml of a 1M CH2Cl2 solution). Stirring was continued at room temperature overnight (18 h). The reaction was quenched with a solution of NaCNBH3 (27 g, 440 mmol, in 150 ml MeOH). After stirring for 2-3 hours, water was added and the pH adjusted to 13 with NaOH. The organic layer was separated and dried over MgSO4, followed filtration and removal of the solvent. The residue was dissolved in ethyl acetate and extracted with 3N HCl. The layers were separated and the aqueous layer was basified with NaOH (pH=13). CH2Cl2 was used to extract the aqueous layer. The CH2Cl2 layer was then dried over MgSO4, filtered and evaporated to give compound 14. 134

[0170] Ethanol (300 ml) was added to compound 14 (17 g, 45 mmol), followed by 2.5 g Pd(OH)2/C. The mixture was placed on a Parr shaker for 1 to 8 hours monitored by TLC at 60 psi of hydrogen then filtered through Celite and the EtOH was removed. The residue was dissolved in ethyl acetate and washed in NaOH. The pH of the aqueous layer was then adjusted to 7, then the aqueous layer was extracted with CH2Cl2, dried with Na2SO4, then evaporated to produce compound IV′. This was then recrystalized from CH3CN to produce pure IV′.

[0171] Preparation 4

[0172] (Process C) 135

[0173] 4.3 g (1 equivalent) of 60% sodium hydride dispersion in mineral oil was weighed into a flame-dried 250 ml flask under nitrogen. The mineral oil was removed by washing with hexane, and 100 ml of dry N,N-dimethylformamide was added by syringe. The suspension was cooled in an ice water bath while 15 g (1 equiv.) of 4-methoxythiophenol was added in portions. The mixture was stirred for 1 hour at room temperature after addition was complete, and 14.6 g (12.6 mL, 1.1 equiv.) of 4-fluorobenzaldehyde was added in one portion. The mixture was stirred for 3 days at room temperature, then poured slowly into 600 mL of ice water with vigorous stirring. The yellow solid was separated by filtration, then triturated twice with 150 mL portions of hexane by vigorous stirring. The product obtained is a light yellow powder, 23 g (88% yield), sufficiently pure for further reaction.

[0174] Preparation 5 136

[0175] 6.75 grams of bis(paramethoxyphenyl)disulfide were stirred with 3.6 mL of glacial acetic acid, and the mixture was cooled to −40° C. Sulfuryl chloride (7.5 mL) was added in portions, and the solution was maintained at −40° C. while the solid dissolved. The brown solution was warmed gradually to −20° C. and stirred for five hours, then warmed to 0° C. Gas was evolved during this period, and the solution darkened to green. The volatiles were removed in vacua, and the crude material was used in the next reaction without delay.

[0176] Preparation 6 137

[0177] 6.9 grams (39.1 mm) of (1R,2S)-2-phenylcyclohexanol (prepared in accordance with J. K. Whitesell, M-S Wong, J. Org. Chem, 56(14), p. 4552, 1991) were dissolved in 150 mL dry THF with 6 mL dry pyridine. The solution was cooled to −78° C., and para-methoxyphenyl sulfinyl chloride (derived from 6.75 g of the corresponding disulfide) was added slowly. The solution developed a white precipitate as it was stirred at −78° C. for one hour. The reaction was quenched with saturated sodium bicarbonate, diluted with ethyl acetate, and extracted with bicarbonate solution and brine. The organic layers were dried over sodium sulfate, concentrated, and purified by column chromatography in a gradient of 10% ethyl acetate/hexane to 25% ethyl acetate/hexane, yielding 10 grams (78%) of the desired sulfinate, slightly contaminated with the minor diastereomer. This diastereomer was purified by crystallization from hexane/ethyl acetate, a procedure also applicable to the crude product.

[0178] Preparation 7 138

[0179] 1.25 grams of magnesium turnings (52 mm, 2.3 equivalents) were stirred in 5 mL of dry THF. One drop of 1,2-dibromoethane was added, followed by a small portion (roughly one gram) of 4-bromobenzaldehyde diethyl acetal. The solution was heated to initiate formation of the Grignard reagent, and the remaining acetal (to a total of 11.2 grams, 45 mm, 2 equivalents) was added in portions, along with THF (to a total of 25 mL.) The mixture was heated to reflux for 45 minutes, then cooled to room temperature. The Grignard solution thus obtained was added in portions to a solution of the starting sulfinate ester (7.5 grams, 22.6 mm) in 150 mL dry toluene at 0° C. After one hour, the reaction was quenched with saturated sodium bicarbonate solution, diluted with ethyl acetate, and extracted with brine. The organic layers were dried over sodium sulfate, concentrated, and purified by brief column chomatography in 25% ethyl acetate/hexane to give recovered chiral alcohol and the desired acetal, which was used directly in the next reaction.

[0180] Preparation 8 139

[0181] The acetal obtained from the reaction of 7.5 grams of sulfinate ester was taken up in 60 mL of THF with 10 mL distilled water. A catalytic amount of paratoluene sulfonic acid was added, and the solution was warmed to 60°. After three hours, the mixture was cooled to room temperature, diluted with ethyl acetate, and extracted with saturated sodium bicarbonate solution. The organic layers were dried over sodium sulfate and concentrated to give the desired aldehyde as a crystalline solid, 5.42 grams (97% over two steps).

[0182] Preparation 9 140

[0183] 2 grams (8.17 mm) of the starting 4-(4-methoxyphenyl)thiobenzaldeyde and 1.75 g (1 equivalent of 80%) meta-chloroperbenzoic acid were taken up in 40 mL of dichloromethane at 0°. After 30 minutes, 300 mg of additional MCPBA was added, and the reaction stirred 30 minutes more. The solution was diluted with ethyl acetate and extracted with saturated sodium bicarbonate. The organic layers were dried over sodium sulfate, concentrated, and the product was crystallized from ethyl acetate/hexane to give a first crop of 1.65 grams.

EXAMPLE 1

[0184] (Process A) 141

[0185] Compound II′ (1.0 g, 3.5 mmol) was dissovled in DMF (10 ml), followed by addition of K2CO3 (1.5 g). Compound III′ (0.66 g, 3.9 mmol) was next added. The mixture was warmed to 50° C. and maintained for 18 hours with stirring. The mixture was cooled to room temperature and ethyl acetate (EtOAc) (150 ml) was added. The organic layer was washed with water (5×50 ml) and saturated NaCl (1×25 ml). The organic layer was dried over Na2SO4, filtered, and the volatiles removed with a rotary evaporator. The resulting oil was purified by column chromatography, on silica gel, with ethyl acetate as solvent.

EXAMPLE 2

[0186] (Process A) 142

[0187] To the solid chloride (770 mg) was added a solution of 2 equivalents of cyclohexylpiperazine in 5 mL CH3CN. The mixture was heated with stirring at reflux for 2 hours then allowed to stand for 18 hours. The resulting solid was suspended in 1:1 EtOAc: water. The aqueous layer was basified with solid K2CO3. The organic layer was washed several times with water, dried with MgSO4 and evaporated to obtain the crude product. This was purified by chromatography on a column of silica gel, (TLC grade), and 50:3:1 CH2Cl2:EtOH:NH4OH as the eluant.

EXAMPLE 3

[0188] (Process B) 143

[0189] To an ice cold solution of compound IV′ (1 equivalent) in dry DMF under nitrogen was added 0.9 equivalents of NaH, (60% dispersion in mineral oil). After 20 minutes 2-chloropyrimidine was added (0.9 equivalents). The solution was heated at 100° C. for 4 hours. After cooling to room temperature water was added (10 mls per 1 ml DMF) and the solution extracted with ethyl acetate. The organic extracts were dried with MgSO4 and evaporated to obtain the crude product which was then purified by column chromatography, (Silica gel, TLC grade and 50:3:1 CH2Cl2:EtOH:NH4OH as eluant).

EXAMPLE 4

[0190] (Process C) 144

[0191] To a solution of VI′ (0.25 g, 0.73 mmol) in 5 ml acetonitrile was added a solution of VII′ (0.12 g, 0.73 mmol, dissolved in 3 ml acetonitrile). The mixture was stirred at room temperature (20° C.) for 0.5 hours, then warmed to 45° C. and stirred for 6 hours. The mixture was cooled to room temperature and ethyl acetate (150 ml) was added and the organic layer was washed with saturated NaCl (1×50 ml). The organic layer was dried over Na2SO4. The organic layer was filtered and the volatiles removed with a rotary evaporator. The resulting oil was purified by flash chromatography using 50 g silica gel and 9:1 CH2Cl2/MeOH (saturated with NH4OH) as solvent. 0.19 g of a syrup was collected.

EXAMPLE 5 (Process D)

[0192] 145

[0193] 2 grams (8.17 mmol) of the starting 4-(4-methoxyphenyl)thiobenzaldehyde, VIII′, and 1.65 g (10 ml, 1.2 equivalents) of N-cyclohexylpiperazine, X′, were taken up under a nitrogen atmosphere in 1 mL of dry dichloromethane at room temperature. 2.9 mL (10 mmol, 1.2 equivalents) of titanium tetraisopropoxide were added by syringe, and the resulting solution was stirred at room temperature for 18 hours. The reaction developed a white precipitate during this period. The reaction was cooled in an ice water bath while 16.3 mL of a 1 molar toluene solution (2 equivalents) of diethylaluminum cyanide were added in portions by syringe. The resulting homogeneous red/brown solution was stirred for 30 minutes at room temperature. The reaction was diluted by the addition of 100 mL ethyl acetate, and quenched by the slow addition of 25 mL water, with vigorous stirring. After 1 hour, the inorganic solids were removed by filtration through Celite, and the filtrate was washed with a saturated brine solution and dried by anhydrous sodium sulfate. The product was concentrated, then purified by column chromatography in a gradient of acetate/hexane, yielding 3.29 grams of the desired product (95% yield.)

EXAMPLE 6

[0194] Hydrolysis of cyano compound to amide 146

[0195] 2 grams (4.6 mm) of the starting nitrile were stirred in 25 mL of tertiary butanol with 1.2 grams (21 mm) of powdered potassium hydroxide. The mixture was heated to reflux for 30 minutes, cooled to room temperature, and diluted with 250 mL of water. The solution was extracted twice with ethyl acetate, and the organic layers were dried over sodium sulfate. Evaporation gave the amide (2 grams, 96%) as an amorphous solid which can be used in subsequent reactions without further purification.

EXAMPLE 7

[0196] Hydrolysis of amide to acid 147

[0197] 0.95 grams of starting amide (2.1 mm) were taken up in 20 mL of 4N hydrochloric acid. The reaction was heated to reflux for 16 hours. The volume of the solution was reduced in vacuo, whereupon the dihydrochloride salt of the desired product precipitated. The solid was isolated by filtration and washed with dry ethyl ether to give 0.85 grams of product, 77% yield. This solid was suitable for use without further purification.

EXAMPLE 8

[0198] Formation of Methyl Ester 148

[0199] A solution of methanolic HCl was prepared by the addition of 3 mL of acetyl chloride to 50 mL of dry methanol. To this solution was added 400 milligrams (0.88 mm) of the starting acid. The flask was fitted with a Soxhlet extraction thimble containing freshly activated molecular sieves (3 Å), and the solution was heated to reflux for 16 hours. The reaction was cooled to room temperature, and the acid was neutralized with solid sodium carbonate. The solution was diluted with 300 mL of dichloromethane and washed with distilled water. The organic layers were dried over magnesium sulfate and purified by column chromotography in 3% methanol/dichloromethane to give 310 milligrams (76%) of the desired product.

EXAMPLE 9

[0200] Formation of tetrazole 149

[0201] 250 milligrams (0.57 mm) of the starting nitrile were taken up under a nitrogen atmosphere in 4 mL of dry toluene with 0.15 mL trimethylsilyl azide (2 equivalents) and 14 milligrams of dibutyltin oxide (1 equivalent). The solution was heated at 100° for 48 hours, whereupon additional equivalents of the azide and tin reagents were added and the solution was heated an additional 24 hours. The reaction was cooled to room temperature and evaporated to a brown solid, which was purified by preparative thin-layer chromatography in 20% methanol/dichloromethane. 27 milligrams of the desired tetrazole were isolated.

EXAMPLE 10

[0202] Alkylation of tetrazole 150

[0203] 20 milligrams (0.57 mm) of the starting tetrazole were treated with an ethereal solution of diazomethane (excess) at 0°. The solution became homogeneous after ten minutes, and after an additional thirty minutes the solution was evaporated and purified by preparative thin-layer chromatograpy in 7.5% methanol/dichloromethane. 10 milligrams of product were isolated.

EXAMPLE 11

[0204] (Process E)

[0205] Alkylation of methyl ester 151

[0206] 100 milligrams (0.2 mm) of the starting ester were taken up under a nitrogen atmosphere in 4 mL of dry tetrahydrofuran at 0°. 0.53 mL (0.26 mm, 1.3 equivalents) of potassium hexamethyidisilazide solution (0.5 M in toluene) were added by syringe, and the resulting solution was stirred for ten minutes. 0.02 mL of iodomethane (1.3 equivalents) were then added by syringe The reaction was stirred for 20 minutes while warming to room temperature, then diluted by the addition of 50 mL ethyl acetate, and extracted with saturated sodium bicarbonate solution and brine. The organic layers were dried by anhydrous sodium sulfate, concentrated, and purified by preparative thin-layer chromotagraphy in 5% methanol/dichloromethane, giving 24 milligrams of the desired product.

EXAMPLE 12

[0207] Alpha-alkylation of cyano compounds 152

[0208] 200 milligrams (0.46 mm) of the starting nitrile were taken up under a nitrogen atmosphere in 10 mL of dry tetrahydrofuran at 0°. 1.2 mL (0.6 mm, 1.3 equivalents) of potassium hexamethyidisilazide solution (0.5 M in toluene) were added by syringe, and the resulting orange solution was stirred for ten minutes. 0.05 mL of iodomethane (1.3 equivalents) were added by syringe, which decolorized the solution. The reaction was stirred for 20 minutes while warming to room temperature, then diluted by the addition of 100 mL ethyl acetate, and extracted with saturated sodium bicarbonate solution and brine. The organic layers were dried by anhydrous sodium sulfate, concentrated, and purified by column chromatography in a gradient of hexane/ethyl acetate, giving 190 milligrams of the desired product (92% yield) as an oil that slowly solidified.

EXAMPLE 13

[0209] Oxidation of Sulfide to Sulfoxide 153

[0210] 1.82 grams of the starting sulfide (4.4 mm) were dissolved in 20 mL of dichloromethane and 17 mL of a 0.5 N solution of methanesulfonic acid in dichloromethane. 1.15 grams of commercial MCPBA (60-80% pure) were added at 0°, and the solution was stirred for thirty minutes. The reaction mixture was diluted with ethyl acetate and extracted with saturated sodium bicarbonate. The organic layers were dried over sodium sulfate, concentrated, and purified by column chromatography in a gradient of 75% ethyl acetate/hexane to 5% methanol/ethyl acetate to give 1.22 grams of the desired sulfoxide and 0.4 grams of the corresponding sulfone.

EXAMPLE 14

[0211] Synthesis of compounds 300, 301, 302, 304, and 760. 154

[0212] Step 1:

[0213] To a stirred mixture of 501 (5.0 g) in 50 ml of aqueous NaOH (20% w/w) was added, at 0° C., Di-tert-butyloxy dicarbonate (3.4 g, 1.2 eq.) dissovled in 50 ml of diethyl ether. The cooling bath was removed and the mixture was stirred at room temperature for 2 hours. Two phases were separated and the aqueous phase was extracted with 2×50 ml of ethyl acetate. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a crude product. Purification by flash chromatography on silica gel (10% EtOAc-Hex.) afforded 3.5 g (89%) of 502 as a white solid (m.p.=89-90° C.).

[0214] Step 2:

[0215] NaH (460 mg, 60% in mineral oil) was washed with dry hexanes and was stirred with 8 ml of dry DMF. To this mixtue was added 4-methoxythiophenol by syringe. The mixture was stirred at RT for 20 min. while the slurry became a clear solution. Compound 502 dissolved in 8 ml of DMF was added dropwise and the mixture was stirred at room temperature over night. Water (80 ml) was added and the mixture was extracted with 3×100 ml of EtOAc. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a crude. Purification by flash chromatography on silica gel (20% EtOAc-Hex.) afforded 3.6 g (74%) of 503 as a white solid (m.p.=105-107° C.).

[0216] Step 3:

[0217] To a solution of 503 (1.5 g) in 40 ml of dry THF at 0° C., was added MeMgBr (1.15 ml, 3.0 M in ether). The mixture was stirred at 0° C. for 1 h. and was quenched with 20 ml of a 10% KHSO4. The aqueous phase was extracted with 2×50 ml of ethyl acetate. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a crude. Purification by flash chromatography on silica gel (30% EtOAc-Hex.) afforded 1.3 g (96%) of 504 as a solid, mp 129-130°.

[0218] Step 4:

[0219] At 0° C., 1.3 g of 504 was dissolved in a mixture of 5 ml TFA and 15 ml CH2Cl2. The cooling bath was removed and the mixture was stirred at RT for 2 h, quenched with saturated bicarbonate at 0° C., and the aqueous layer extracted with EtOAc. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a white solid compound 505 which was used in the next step without further purification.

[0220] Step 5:

[0221] The white solid from step 4 was dissolved in 10 ml methylene chloride and to this solution was added 350 mg of cyclohexanone followed by 1.3 g of titanium (IV) isopropoxide. The mixture was stirred at RT over night. At 0° C., 440 mg of NaCNBH3, dissolved in 2 ml of methanol was added and the mixture was stirred at RT for an additional 3 h. The mixture was quenched with water and extracted with EtOAc. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a crude product. Purification by flash chromatography on silica gel (100% EtOAc) afforded 0.5 g (40%) of Compound 302 as a white solid. The solid was dissolved in ethyl acetate, and treated with 2-3 equivalents of ethereal dry HCl. The mixture was evaporated to dryness in vacuo to give the hydrochloride, m.p. 227-30°.

[0222] Step 6:

[0223] To a stirred solution of 350 mg of compound 302 in 60 ml EtOAc and 60 ml CH2Cl2 were added 1.7 ml of MeSO3H (0.5 M in CH2Cl2), followed by 262 mg of mCPBA (50-60%) at −40° C. The mixture was allowed to reach 0° C. and was quenched with saturated bicarbonate solution (100 ml). The mixture was extracted with 3×100 ml of EtOAc. The combined organic phases were dried over Na2SO4, filtered and concentrated to give a crude product. Purification by flash chromatography on silica gel (15% EtOH-EtOAc) afforded 0.2 g (55%) of compound 304 as a white solid.

[0224] HPLC Separation of compound 304 on a Chiralcel OJ column; (Chiral Technologies, Inc., Exton, Pa.):

[0225] Compound 304 was separated on a 100-200 mg scale under the following conditions:

[0226] Solvent system: 0.1% diethyl amine/3% ethanol/hexane

[0227] Flow rate: 160 ml/min

[0228] Retention Time: 70 min for enantiomer A (compound 300, mp=141-142)

[0229] 90 min for enantiomer B (compound 301, mp=141)

[0230] Synthesis of Compound 760: 155

[0231] Compound 505 (0.375 g, 1.15 mmol) and 4-carboethoxycyclohexanonone (0.294 g, 1.72 mmol) were dissolved in 6 mL of CH2Cl2. The reaction mixture was then cooled to 0° C. followed by addition of Ti(i-PrO)4 (1.3 mL, 4.42 mmol). The reaction mixture was stirred at room temperature overnight, when TLC indicated there was no starting material. To the reaction mixture was slowly added a solution of NaCNBH3 (0.364 g, 5.8 mmol) in MeOH (2 mL). The reaction mixture was then stirred at room temperature for 2 h. The reaction was quenched by addition of 50 mL of 1N NaOH followed by 50 mL of ethyl acetate. The reaction mixture was stirred at room temperature for 1 h then was extracted with ethyl acetate (50 mL×3). The organic layer was dried with NaHCO3. Solvent was removed and the residue was separated on a silica gel column (5% methanol/CH2Cl2) to afford the sulfide (0.46 g, 83% yield) as an oil.

[0232] The sulfide (0.038 g, 0.08 mmol) was dissolved in 2 mL of HOAc followed by addition of NaBO3/4H2O (0.037 g, 0.24 mmol). The reaction mixture was stirred at room temperature overnight, when TLC indicated there was no starting material. To the reaction mixture was then added 1N NaOH until basic. The reaction mixture was extracted with ethyl acetate (20 mL×3). The organic layer was dried with NaHCO3. Solvent was removed and the residue was separated on a silica gel column (5% methanol/CH2Cl2) to afford Sch 65546 (0.007 mg, 17% yield) as an oil.

EXAMPLE 15

[0233] Synthesis of Compound 306. 156

[0234] Preparation of 511

[0235] To a solution of 25 mmol of cyclohexanone in 20 ml of acetic acid is added 62.5 mmol of cyclohexylpiperazine. The system is blanketed with N2 and 31.3 mmol of TMS-cyanide, is added. The solution is then heated at 60° C. under N2 for approximately 20 hours. Acetic acid is removed on a rotary evaporator and the residue treated with 100 ml of water. This is extracted with EtOAc, (3×, 50 ml). Organic layers are washed with 100 ml. of water, dried with Na2SO4 and evaporated to give the crude product as an oil which is purified by column chromatograpy using 100:3:1 CH2Cl2:EtOH:NH4OH as eluant. An oil was obtained, 10 g of which was dissolved in 100 ml CH2Cl2 and 50 ml water, then basified to pH 8 with K2CO3. The organic layer was dried with Na2SO4 and evaporated to obtain a light yellow powder, 6.6 g. 157

[0236] Preparation of Compound 306:

[0237] In a three necked round bottomed flask is placed 5.4 mmol of Mg and the flask is fitted with a condenser, dropping funnel and nitrogen inlet. The system is flame dried under nitrogen. Bromodiphenyylether (5.4 mmol), is dissolved in anhydrous THF, (10 ml), and added dropwise. Addition of a drop of ethylene dibromide, iodine and occasional warming may be necessary to initiate Grignard formation. Once initiated the mixture is heated at reflux until all the Mg dissolves. Next, 1.8 mmol of cyanoamine 511 as a solution in 5 ml of dry THF is added, reflux is continued, and the reaction monitored by TLC.

[0238] The reaction mixture is cooled to room temperature and quenched by addition of a saturated NH4Cl solution, (10 ml ). This is diluted with 10 ml of water and extracted with 15 ml EtOAc. (3×). The organic extracts are dried with Na2SO4 and evaporated to give the crude product as an oil which is purified by column chromatography using ether/EtOAc as eluant. 370 ml of clear colorless oil was obtained.

[0239] The dimaleate salt was prepared by dissolving the oil in 10 ml of EtOAc and treating with 200 mg of maleic acid. A white powder was obtained (510 mg, mp=144-146).

EXAMPLE 16

[0240] Synthesis of Compound 303

[0241] Example 15 is repeated except in place of cyclohexanone there is used a compound of the formula 158

[0242] Compound 303 is obtained as a di-maleate: 159

EXAMPLE 17

[0243] 160

[0244] NaH (334 mg, 60% oil suspension) was washed with 15 ml of hexane, then stirred with 5 ml of DMF. Compound 522 (1.03 ml) was added without solvent, the mixture stirred at room temperature for 20 min, a solution of 521 (2.42 g obtained by reductive alkylation) in 1.7 ml of hot DMF added, and the resulting mixture stirred at room temperature for two days. The mixture was quenched with water, and extracted with ethyl acetate. The extracts were purified by flash chromoatography over SiO2 to give 3.0 g of product 523, mp 128-9°. 161

[0245] m-Chloroperbenzoic acid (MCPBA, 81 mg) was added to a solution of 523 (105 mg) and MeSO3H (0.5 M in CH2Cl2, 1.0 ml) in 50 ml of ethyl acetate at −40°. Sufficient CH2Cl2 was added at this temperature to effect dissolution of solids, and the mixture allowed to warm to room temperature. The mixture was quenched with excess NaHCO3 solution, and extracted with ethyl acetate. The extracts were concentrated and purified by preparative thin-layer chromatography, developing with 20% ethanol-ethyl acetate to give Compound 305 N-oxide. This material was dissolved in CH2Cl2, CS2 added, and the resulting mixture stirred for 3 hrs. at room temperature. Evaporation of volatiles and purification of the residue by preparative TLC as above gave Compound 305, mp 125°.

EXAMPLE 18 (Process F)

[0246] Preparation of compounds 3-10 shown in Process F, where R is 4-methoxyohenyl, R3 and R4 are H, R1 is (S)—CH3, and R27 is (R)—CH3 and Preparation of Compound (3)

[0247] To an ice cooled solution of trifluoroacetic anhydride (19 mL) in CH2Cl2 (100 mL) add over 15 min (S)-(−)-α-methylbenzylamine (12.2 g) in CH2Cl2 (25 mL) with stirring, then stir at RT for 1 h. Cool in ice and add methanesulfonic acid (40 mL) then powdered dibromodimethyl hydantoin (15 g). Stir till dissolved, then store for 20 h at RT, protected from light. Add to a stirred solution of NaHSO3 (5 g) in ice-H2O (100 mL), stir 5 min., separate, extract with CH2Cl2, wash the combined organics with H2O and dry (MgSO4). Filter on 30 g flash silica and elute with CH2Cl2 (300 mL). Evaporate the total eluates to dryness, add Et2O (100 mL), stir 10 min. and add hexanes (500 mL). Stir 0.5 h, filter, wash with hexanes and dry to obtain the 4-bromocompound (12.3 g) as white crystals.

[0248] Mp: 153-155°. Mass spectrum: MH+=296/298.

[0249] Preparation of Compound (4)

[0250] Cool a solution of compound (3) (11.95 g) in dry THF (160 mL) to −70° under N2 and add methyllithium (1.4M in Et2O, 28.8 mL). Stir 5 min. then add n-butyllithium (2.5M in hexanes, 17 mL). Stir 5 min. then add 4-methoxybenzenesulfonyl fluoride (16 g). remove the cooling bath, stir for 0.5 h, add 1N-HCl aq. (200 mL) and exteract with CH2Cl2. Wash with H2O, dry (MgSO4) and filter on a 15 g pad of flash silica gel, wash with 5% Et2O—CH2Cl2 and evaporate. Recrystallise with Et2O-hexanes and dry to give the sulfone (13.4 g) as off-white crystals.

[0251] Mp: 97-100°. Mass spectrum: MH+=388.

[0252] Preparation of Compound (5)

[0253] Reflux on a steam bath for 2 h a mixture of compound (4) (17.5 g) and NaOH (6 g) in H2O (15 mL) and ethanol (120 mL). Cool, add H2O and extract with CH2Cl2. Dry over K2CO3, filter and evaporate. Triturate with Et2O-hexanes till solid, filter and dry to afford the amine (10.4 g), as a white solid.

[0254] Mp: 113-115°. Mass spectrum: MH+=292

[0255] Preparation of Compound (6)

[0256] To solution of compound (5) (1.46 g) in CH2Cl2 (20 mL) and potassium carbonate (2 g) in H2O (10 mL) add ethyl (S)-lactate trifluoromethanesulfonate (1.1 g) and stir at RT for 5 h. Wash with water, dry (MgSO4), evaporate and chromatograph on flash silica gel, eluting with a 0-15% gradient of Et2O in CH2Cl2. Evaporate the pure fractions and triturate in hexanes to obtain the crystalline ester (1.90 g)

[0257] Mp: 56-58°. Mass spectrum: MH+=392.

[0258] Preparation of Compound (7)

[0259] Reflux a mixture of compound (6) (1.73 g), acetonitrile (15 mL), anhydrous sodium carbonate (1.5 g) and ethyl iodoacetate (1.4 mL) for 48 h., work up in H2O—CH2Cl2, dry (MgSO4) and evaporate. Chromatograph on silica, using a 0 to 10% gradient of Et2O in CH2Cl2 and evaporate appropriate pure fractions to separately obtain the solid product (1.46 g) and recovered starting aminoester (0.53 g).

[0260] Mp: 69-71°. Mass spectrum: MH+=478.

[0261] Preparation of Compound (8)

[0262] Stir lithium aluminum hydride (0.45 g) in THF (15 mL) under N2 with ice cooling and add over 2-3 min. a solution of diester (7) (1.30 g) in THF (25 mL). Stir in ice for 0.5 h., add EtOAc (5 mL) dropwise, then add the solution to stirred, ice cooled 2N-NaOH solution (50 mL). Separate, extract the aq. with 3:1 Et2O—CH2Cl2, combine, dry and evaporate the organics and triturate with a little Et2O to obtain the diol as a white powder (0.88 g).

[0263] Mp: 123-125°. Mass spectrum: MH+=394.

[0264] Preparation of mixture (10)

[0265] Reflux a mixture of compound (8) (0.125 g), thionyl chloride (0.25 mL) and 1,2-dichloroethane (5 mL) for 1.5 h., evaporate, co-evaporate with 3 mL dichloroethane and dry at high vacuum to obtain the mixture of dichlorocompounds as a pale yellow foam, suitable for use in the next step.

[0266] Preparation of compound numbers 730 and 803

[0267] These compounds are examples of compounds 11 and 12 as shown for process f.

[0268] Convert diol (0.125 g) to the dichlorides as described above, then reflux this product for 2 h. in acetonitrile (2.5 mL) with trans-4-aminocyclohexanol hydrochloride (0.32 g), sodium iodide (0.5 g) and diisopropylethylamine (0.6 mL). Cool, and partition in H2O—CH2Cl2. Dry and evaporate the organic phase, and subject the residue to preparative TLC, eluting with acetone. Extract the separated bands with 1:1 CH2Cl2—MeOH, evaporate and dry at high vacuum to obtain the free bases as foams.

[0269] The less polar band (0.056 g) is compound no. 730. Dissolve this in CH2Cl2 (2 mL) and add to stirred Et2O (15 mL) containing 4M HCl-dioxan (0.4 mL). Centrifuge, wash by suspension-centrifugation in ether (2×15 mL) and dry under N2 to obtain the dihydrochloride as a white powder.

[0270] Mp: 195-205°, with decomposition. Mass spectrum: MH+=473.

[0271] The more polar band (0.076 g) is compound 803. Convert this to the hydrochloride as above.

[0272] Mp: 215-225 C, with decomposition. Mass Spectrum MH+=473

EXAMPLE 19 (Process G)

[0273] Preparation of compound 667 and 656

[0274] Step 1 (a) 162

[0275] A solution of the aldehyde (Compound VII′ of preparation 4, Process C, 4.9 g, 0.02 mol) in 50 mL THF was cooled in an ice water bath and methylmagnesium bromide (8.5 mL, 3.0M) was slowly added. After 0.5 h the temperature was warmed to room temperature where stirring was continued for 16 h. After dilution with ethyl acetate and addition of water the organic layer was washed with water, brine, and concentrated. Drying under vacuum produced a yellow oil (5.1 g) which was used without further purification.

[0276] A dichloromethane (150 mL) solution of the sulfide was cooled in an ice water bath where MCPBA (11.7 g, 60%) was added. After stirring for 1 h the temperature was warmed to room temperature and stirred for 16 h. After diluting with ethyl acetate the reaction was washed with 10% sodium carbonate, water, and brine. The solution was concentrated and purified by chromatography with ethyl acetate to the sulfone alcohol.

[0277] Step 1(b) 163

[0278] To a clear pale yellow solution of the p-anisylthioacetophenone 1 (0.8 g; 3.1 mmol) in anhydrous tetrahydrofuran (5 mL) was added (S)-oxaborolidine catalyst 2 (0.168 g; 0.6 mmol) and stirred at room temperature for 15 minutes. A solution of borane-methyl sulfide in tetrahydrofuran (2M from Aldrich Chemicals; 1.86 mmol; 0.93 mL) was added dropwise over 6 minutes to the solution of ketone 1 and catalyst 2 at room temperature. After 10 minutes of stirring, thin layer chromatography (TLC) showed absence of starting material and formation of a new, slightly more polar spot. The reaction was quenched by adding methanol (5 mL) and stirring for 15 minutes. Volatiles were removed on the rotary evaporator and the residue was dissolved in methylene chloride (50 mL). The organic extract was washed with water, 1N.HCl, water, 10% NaHCO3, brine and dried over magnesium sulfate. Concentration of the organic extract gave the carbinol 3 as a clear pale yellow oil (0.76 g; yield=94%).

[0279] HPLC: AS-Column (5% i-PrOH in Hexanes); Rt˜19 min; R: S=97:3 (94% ee/R-Alcohol)

[α]D=+26.1 (c=0.1; CHCl3)

[0280] A clear pale yellow solution of 3 (0.76 g; 2.92 mmol) in anhydrous dichloroethane (8 mL) at room temperature was treated sequentially with solid NaHCO3 (0.6 g; 7 mmol) and solid meta-chloroperoxybenzoic acid (1.1 g; 6.43 mmol). The flask was fitted with a reflux condenser and the reaction mixture was heated to reflux. TLC at the end of 8 hours showed absence of 3 and formation of a more polar spot. Reaction mixture was allowed to cool to room teperature. The organic layer was decanted away from the white precipitate of sodium salts, washing the solid residue with methylene chloride (2×20 mL). The combined organic extract was washed with water, 10% Na2S2O3 solution, water, 10% NaHCO3 solution and brine. Dried the organic layer over magnesium sulfate and concentrated to obtain −0.8 g of a pale yellow solid. Flash silicagel chromatography (20% EtOAc-CH2Cl2) gave 0.75 g (88% from 1) of sulfone as a white solid, mp: 125-126° C. [α]D=+22.1 (C=0.095; CHCl3)

[0281] Step 2: 164

[0282] To a suspension of the alcohol (4.0 g, 13.6 mmol) in dichloromethane (30 mL) was added triethylamine (2.75 g, 27.2 mmol). The mixture was cooled in an ice/water bath and methanesulfonyl chloride (1.87 g, 16.3 mmol) was added dropwise. After 1 h the mixture was diluted with dichloromethane and washed with water, 2% HCl, water, 10% NaHCO3 and brine. After drying over sodium sulfate the solvent was evaporated to afford the crude product as a gum. It was used without further purification.

[0283] Step 3: 165

[0284] 2-(R)-Methylpiperazine (30 g, 0.3 mol) and cyclohexanone (32 g, 0.33 mol) were dissolved in methylene chloride (60 mL) and cooled in an ice/water bath where titanium (IV) isopropoxide (93 g, 0.33 mol) was added dropwise. Stirring was continued for 1 h at 0° C. then at room temperature for 16 h. A solution of sodium cyanoborohydride (21 g, 0.33 mol) in methanol (200 mL) was added with stirring continued for 24 h. The mixture was diluted with 1L ethyl acetate and stirred with 400 mL 10% NaOH for 1 h. The aqueous solution containing a white precipitate was discarded. The organic layer was washed with water and brine, followed by concentration on a rotary evaporator. The residue purified by flash chromatography with 25:1 CH2Cl2/MeOH (saturated with aqueous ammonia), yield=50%. 166

[0285] The mesylate from step 2 (4.8 g, 13 mmol) and 1-cyclohexyl-3(R)-methylpiperazine (3.5 g, 19.4 mmol) were dissolved in 40 mL CH3CN and heated to 60 C where stirring was continued for 24 h, then refluxed for 8 h. The solvent was removed and the residue dissolved in ethyl acetate. The organic layer was washed with 10% sodium carbonate and brine. The solvent was evaporated and the residue chromatographed with 4:1 dichloromethanelacetone. When step 1a is used, two diastereomers (compounds 656 and 667) were collected in a 1:1 ratio (656: Rf0.40, ethyl acetate: Anal. cale. C, 68.39; H, 7.95;, N, 6.13; S, 7.02; found C, 68.01; H, 8.02; N, 6.09; S, 7.05. 667: Rf0.30, ethyl acetate: found C, 68.06; H, 8.08; N, 6.18; S, 6.84). When step 1b is used starting with the (S)-oxaborolidine shown, then the product is 656 while (R)-oxaborolidine catalyst gives 667. 167

[0286] By appropriate choice of starting materials, the following compounds were prepared. In these tables the following notes apply.

[0287] t-BOC means t-butloxycarbonyl. The compound numbering is not consecutive. A (+) or (−) after a compound number indicates the optical rotation of the stereoisomer for which data is given. “IsoA” or “IsoB” after a compound number indicates an assignment of A or B to different stereoisomers of a compound having the same structural formulas without regard to optical rotation. When the chiral atom has been identified, “isoA” or “isoB” is listed after a substituent for that atom. NBA is nitrobenzyl alcohol, G/TG is glycerol/thioglycerol. Chex means cyclohexyl.

Compounds having the formula
168
#	R	X	R1	R2	Mass Spectrum or MP
1	C6H5	S	CH3	CH3	MP = 254-256 (di-HCl)
2	C6H5	SO2	CH3	CH3	MP = 226-230 (di-HCl)
3	C6H5	SO	CH3	CH3	MP = 240-242 (di-HCl)
4	C6H5	SO	CH3	H	MP = 80-85 (dimaleate)
5	C6H5	S	CH3	H	MP = 227-229 (di-HCl)
6	C6H5	SO2	CH3	H	MP = 180-220 di-HCl hydrate
7	C6H5	SO2	CH3	(CH2)2OH	MP = 236-238 (di-HCl)
8	4-Cl—C6H4	SO2	CH3	(CH2)2OH	MP = 242-244 (di-HCl)
9	C6H5	O	CH3	(CH2)2OH	Cl(CH4):327(M + 1), 309, 197
10 (+)	C6H5	SO2	CH3	(CH2)2OH	FAB -NBA-G/TG-DMSO:375 (M + 1)
11 (−)	C6H5	SO2	CH3	(CH2)2OH	FAB-NBA-G/TG-DMSO:375(M + 1)
12	2-pyridyl	O	CH3	CH3	MP = 172-175 (Dimaleate)
13	C6H5	O	CH3	(CH2)2O(CH2)2OH	El:370 (M+), 197,99
14	C6H5	SO2	i-Pr	(CH2)2OH	El:(M + 1)402, 359, 329, 128,
15	C6H5	SO2	CH3	2-CH3O—C6H4	FAB-NBA-G/TG-DMSO:437 M + 1)
16	C6H5	SO2	CH3	cyclohexyl	Cl(CH4):(m + 1) 413
17	C6H5	SO2	i-Pr	cyclohexyl	Cl(CH4:(M +‘1) 441, 397, 299
18	4-CH3C6H4	SO2	CH3	cyclohexyl	El:427(M + 1), 383, 167
19	C6H5	SO2	CH3	C6H5	SIMS-NBA-G/TG-DMSO:407 (M + 1), 232
20	3-pyridyl	O	CH3	(CH2)2OH	MP = 165-168 (Dimaleate)
21	3-pyridyl	O	CH3	cyclohexyl	MP = 219-222 Dimaleate
22	3-pyridyl	S	CH3	(CH2)2OH	MP = 155-158 Dimaleate
23	3-pyridyl	S	CH3	cyclohexyl	MP = 159-159 (Dimaleate)
24	2-CH3-4-pyridyl	O	CH3	(CH2)2OH	MP = 165-166 (Dimaleate)
25	2-CH3-4-pyridyl	O	CH3	cyclohexyl	MP =90-91
26	C6H5	O	CH3	cyclohexyl	El:364 (M+), 349, 197, 167
27	C6H5	SO2	C6H5	cyclohexyl	FAB-NBA-G/TG-DMSO:(M + 1) 475, 335,
					307, 257
28	C6H5	SO2	i-Pr	(CH2)3OH	FAB-G/TG-DMSO:(M + 1) 417, 373, 315,
					273
29	C6H5	SO2	i-Pr	(CH2)2O(CH2)2OH	FAB-NBA-G/TG-DMSO:(M + 1) 447, 404,
					329, 315
30	C6H5	SO2	n-Bu	cyclohexyl	MP = 217-220
31	4-Cl—C6H4	SO2	i-Pr	cyclohexyl	MP = 134-137 (dec)
32	4-CH3—C6H4	SO2	i-Pr	cyclohexyl	MP = 208-210
33	C6H5	SO2	CH3	4-NO2—C6H4	FAB-NBA-G/TG-DMSO:452(M + 1
34	C6H5	SO2	CH3	(CH2)3OH	FAB-NBA-G/TG-DMSO:389(M + 1)
35	4-CH3—C6H4	SO2	CH3	2,3-(CH3)2-C6H3	Cl(CH4):449(M + 1), 191, 148
36	4-Cl—C6H4	SO2	CH3	cyclohexyl	FAB-NBA-G/TG-DMSO:447 M + 1)
37	3-pyridyl	O	i-Pr	cyclohexyl	MP = 150-153 (Difumarate)
38	4(CH3O)C6H4	SO2	i-Pr	cyclohexyl	Cl(CH4):(M + 1)471, 427, 305, 289, 144,
39	4-Cl—C6H4	SO2	C6H5	cyclohexyl	FAB-NBA-G/TG-DMSO:510 (M + 1), 399,
					341
40	4-Cl—C6H4	SO2	n-Bu	cyclohexyl	FAB-NBA-G/TG-DMSO: 489 (M + 1), 349,
					314
41	4-(t-Bu)C6H4	SO2	i-Pr	cyclohexyl	FAB-NBA-G/TG-DMSO:497 (M + 1), 453,
					371, 329, 301, 223
42	3-Cl—C6H4	SO2	CH3	cyclohexyl	Cl(CH4):447 (M + 1)
43	C6H5	SO2	cyclohexyl	cyclohexyl	Cl(CH4):481 (M + 1), 341, 315, 219, 169,
					167, 111, 79
44	C6H5	SO2	CN	cyclohexyl	Cl(CH4):424 (M + 1), 397, 328, 286, 258,
					233, 197, 169, 167, 111, 79
45	C6H5	O	CH3	(CH2)2-O-t-BOC	FAB-SIMS-NBA-G/TG-DMSO:411
					(M + 1), 308, 197
46 (+)	4-CH3—C6H4	SO2	CH3	cyclohexyl	El:427 (m + 1), 388, 167
47(−)	4-CH3—C6H4	SO2	CH3	cyclohexyl	El:427 (m + 1), 388, 167
48	C6H5	O	CH3	(CH2)2-O-t-BOC	Cl(Isobutane):425 (M + 1)
49	4-t-Bu-C6H4	SO2	CH3	cyclohexyl	Cl(CH4):(M + 1) 469, 456
50	4(CH3O)C6H4	SO2	CH3	cyclohexyl	Cl(CH4):(M + 1) 443, 399, 167, 125
51	4-CH3—C6H4	SO2	CN	cyclohexyl	Cl(Isobutane):438(M + 1), 411, 272, 261,
					169
52	2,4-(Cl)2—C6H3	O	CH3	cyclohexyl	Cl(Isobutane):435(M + 2), 434, 433, 314,
					312, 267, 265, 195, 169, 167
53	4-CH3—C6H4	SO2	CH3	(CH2)2NHCOCH3	Cl(CH4):430 (M + 1), 357
54	4-t-Bu-C6H4	O	CH3	cyclohexyl	Cl(Isobutane):421 (M + 1) 349. 335, 261,
					259, 91
55	n-Bu	O	CH3	cyclohexyl	Cl(Isobutane):345 (M + 1), 177, 169
56	4-CH3—C6H4	SO2	CH3	CH2CONH2	Cl(CH4):402 (M + 1)
57	2-pyrimidyl	O	CH3	cyclohexyl	MP = 191-193 (Dimaleate)
58	4-CH3-3-pyridyl	O	CH3	cyclohexyl	MP = 168-170 (Dimaleate)
59	4-CH3—C6H4	SO2	CH3	CH2-cyclohexyl	Cl(CH4):441 (M + 1)
60	3-pyridyl	O	CH3	CH2-cyclohexyl	MP = 187-189 (Dimateate)
61	2-benzoxazolyl	O	CH3	cyclohexyl	MP = 165-168 (Maleate)
62	3-pyridyl	O	CH3	CH2CH(OH)C6H5	MP = 162-164 Dimaleate
63	3-pyridyl	O	CH3	bicyclo[2.2.1]hept-2-yl	MP = 168-175 (Dimaleate)
64	C6H5	O	CH3	(CH2)2OCOCH2-tBU	Cl(CH4):425 (M + 1), 309, 197
65	1-Me-2-imidazolyl	S	CH3	cyclohexyl	MP = 155-158 (Dimaleate)
66	2-pyrimidyl	O	CH3	cyclopentyl	MP = 178-181 (Dimaleate)
67	2-pyrimidyl	O	CH3	cycloheptyl	MP = 167-171 (Dimaleate)
68	2-pyrimidyl	O	CH3	tetrahydrothiapyran-4-yl	MP = 157-160 (Dimaleate)
69	2-pyrimidyl	O	CH3	3-Me-2-butenyl	MP = 180-182 (Dimaleate)
70	2-pyrimidyl	O	CH3	2-cyclohexenyl	MP = 171-174 (Dimaleate)
71	2,4-(MeO)2-6-	O	CH3	cyclohexyl	MP = 196-199 (Dimaleate)
	pyrimidyl
72	4-CF3-2-pyridyl	O	CH3	cyclohexyl	MP = 178-182 Dimaleate
73	3-Me-2-butenyl	O	CH3	cyclohexyl	MP = 194-197 Dimaleate)
74	2-pyrimidyl	S	CH3	cyclohexyl	MP = 182-184 (Dimaleate)
75	4-Me-2-pyrimidyl	S	CH3	cyclohexyl	MP = 163-165 (Dimaleate)
76	3-pyridyl	O	CH3	1-azabicyclo[2.2.2]-oct-3-yl	MP = 182-184
77	3,4-(MeO)2-C6H3	SO2	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:473 (M + 1), 399,
					337 305, 273, 214
78	4-Me-2-pyrimidyl	O	CH3	cyclohexyl	MP = 179-181 (Dimaleate)
79	4-HO—C6H4	O	CH3	cyclohexyl	Cl(CH4):(M + 1) 381, 287, 241, 213, 195,
					167,
80	4-Et-C6H4	O	CH3	cyclohexyl	Cl(CH4):(M + 1)393, 377, 253, 225, 195,
					169,
81	1-piperidyl	CH2	CH3	cyclohexyl	Cl(Isobutane):(M + 1) 370,
83	4-CH3-C6H4	SO2	CH3	2-ketocyclohexyl	Cl(CH4):441(M + 1), 345, 261
84	4-CH3—C6H4	SO2	CH3	(CH2)2OH	SIMS-NBA-G/TG-DMSO:389 (M + 1)
85	3,5-(CH3)2-C6H3	O	CH3	cyclohexyl	El:(M + 1) 392, 377, 343, 327, 225, 155,
86	4-CH3O—C6H4	O	CH3	cyclohexyl	Cl(Isobutane):395 (M + 1), 269, 227, 181,
					169
87	2-cyclohexenyl	O	CH3	cyclohexyl	Cl(Isobutane):369 (M + 1), 288
88	4-Cl-2-pyrimidyl	O	CH3	cyclohexyl	MP = 160-161 (Dimaleate)
89	4,6-(Cl2-2-	O	CH3	cyclohexyl	MP = 180-182.5 (Dimaleate)
	pyrimidyl
90	2,4-(MeO)2-1,3,5-	O	CH3	cyclohexyl	MP = 198-200 (Dimaleate)
	triazin-6-yl
91(−)	2-pyrimidyl	O	CH3	cyclohexyl	Cl(CH4):367 (M + 1), 199, 142
92(+)	3-Cl—C6H4	SO2	CH3	cyctohexyl	Cl(CH4): 449, 447 (M + 1),
93(−)	3-Cl—C6H4	SO2	CH3	cyclohexyl	Cl(CH4):449, 447 (M + 1),
94 (+)	2-pyrimidyl	O	CH3	cyclohexyl	Cl(CH4):367 (M + 1), 199, 142
95	tetrahydropyran-4-yl	O	CH3	cyclohexyl	MP = 218-220 (diHCl)
96	2,3,5-(Me)3-C6H2	O	CH3	cyclohexyl	El(M + 1):406, 266, 239, 167
97	4-CH3—C6H4	SO2	CH3	1-methytbutyl	SIMS-NBA-G/TG-DMSO:415(M + 1)
98	C6H5	S	CH3	cyclohexyl	Cl(CH4):381(M + 1)
99	6-Cl-3-pyridazinyl	O	CH3	cyclohexyl	MP = 115-117
100	6-MeO-3-	O	CH3	cyclohexyl	MP = 123-127
	pyridazinyl
101	3-pyridazinyl	O	CH3	cyclohexyl	MP = 113-115
102	2-MeS-4-	O	CH3	cyclohexyl	MP = 185-187 (Dimaleate)
	pyrimidinyl
103	2-thiazolyl	O	CH3	cyclohexyl	MP = 184-186 (Dimaleate)
104	pivaloyl	O	CH3	cyclohexyl	Cl(CH4):373 (M + 1), 205, 169, 167, 121
106	4-CH3O—C6H4	S	CH3	cyclohexyl	Cl(Isobutane:(M + 1) 411, 243, 169,
107	3,4-(MeO)2C6H3	S	CH3	cyclohexyl	Cl(CH4):(M + 1) 441, 273, 164,
108	C6H5	C(CH3)	CH3	cyclohexyl	MP = 185-18 Dimaleate
		(OH)
109	N-morpholinyl	CH2	CH3	cyclohexyl	Cl(CH4):372 (M + 1), 285, 249, 204, 191,
					169, 167, 119
110	4-Me-piperazin-1-yl	CH2	CH3	cyclohexyl	Cl(CH4):385(M + 1), 217, 195, 169, 113, 89
111	C6H5	C═CH2	CH3	cyclohexyl	MP = 189-191 (Dimaleate)
112	C6H5	CHOH	CH3	cyclohexyl	Cl(CH4):379 (M + 1), 362, 301, 273, 211,
					195, 169, 166
113	pyrazinyl	O	CH3	cyctohexyl	MP = 110-111
114	2-propynyl	O	CH3	cyclohexyl	MP = 173-175 (Dimaleate)
115	2-hydroxyethyl	O	CH3	cyclohexyl	Cl(CH4):(M + 1) 333, 317, 205, 165, 121
116	benzyl	O	CH3	cyclohexyl	El:(M + 1) 470, 455, 330, 303, 167
117	H	CO	CH3	cyclohexyl	Cl(CH4):301 (M + 1), 385, 195, 169, 135,
118	CH3	CO	CH3	cyclohexyl	MP = 158-161 (dimaleate)
119	4-CH3O—C6H4	CHOH	CH3	cyclohexyl	El:408, 279, 268, 241, 167, 135, 126.
120	(Me)2NCO	O	CH3	cyclohexyl	Cl(CH4):(M + 1) 360, 273, 220, 192, 108
121	4-NO2—C6H4	O	CH3	cyctohexyl	SIMS-NBA-G/TG-DMSO:409 (M + 1), 393,
					366, 338, 283, 270, 242, 196, 167
122	4-HO—C6H4	S	CH3	cyclohexyl	Cl(CH4):(M + 1) 397, 257, 229, 195, 167
123	4-CH3O—C6H4	SO	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:427.2 (M + 1),
					343
124	C6H5	CH═CH	CH3	cyclohexyl	MP = 108-111
125	4-CH3O—C6H4	CO	CH3	cyclohexyl	Cl(CH4):407 (M + 1), 299, 269, 241, 197,
					169, 167, 135.
126	3-CH3O—C6H4	S	CH3	cyclohexyl	Cl(CH4):411, (M + 1), 271, 245, 243, 195,
					169, 166.
127	4-Br-2,3,5,6-	O	CH3	cyclohexyl	Cl(CH4):515 (M + 1), 437, 435, 271, 269,
	tetrafluoro-phenyl	191, 167.
128	3-CH3O—C6H4	SO	CH3	cyclohexyl	MP = 231-234
129	4-CHO—C6H5	O	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:393 (M + 1), 365,
					307, 289, 273, 262, 257, 246, 225
130	4-HO—C6H5	SO	CH3	cyclohexyl	Cl(CH4):(M+ 1) 413, 397, 271, 229, 167
131	3,4-(CH3O)2C6H4	SO	CH3	cyclohexyl	Cl(Isobutane):(M + 1) 457, 441,
132	3-phenyl-2-	O	CH3	cyclohexyl	MP = 191-194 (Dimaleate)
	propynyl
133	3-phenyl-2-	O	CH3	cyclohexyl	MP = 145-148 (HCl)
	propenyl
134	2-butynyl	O	CH3	cyclohexyl	MP = 190-192 (dimaleate)
135	4-CH3O—C6H4	SO2	CN	cyclohexyl	SIMS-NBA-G/TG DMSO 454:(M + 1), 427,
					399, 346, 299, 274, 257, 238, 215
136	2-pyrimidinyl	SO2	CH3	cyclohexyl	MP = 194-195 (dimaleate)
137	2-pyrimidinyl	SO	CH3	cyclohexyl	MP = 165-167 (dimaleate)
138	3-pyridyl	SO	CH3	cyclohexyl	MP = 123-125
139	3-pyridyl	SO2	CH3	cyclohexyl	MP = 142-145
140	3-CH3O—C6H4	O	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:395.4 (M + 1),
142	4-CH3O—C6H4	C═NOH	CH3	cyclohexyl	El:(M + 1) 421, 405, 378, 265, 239,
		ISO 1
143	4-CH3O—C6H4	C═NOH	CH3	cyclohexyl	El:(M + 1) 421, 405, 377, 265, 254
		ISO 2
144	4-CH3O—C6H4	S	CN	cyclohexyl	SIMS-NBA-G/TG-DMSO:422 (M + 1), 395,
					300, 273, 257, 254, 238
145	4-CH3O—C6H4	SO	CN	cyclohexyl	Cl(CH4):438.2(M + 1), 411.3, 331, 254.2
146	benzyl	C≡C	CH3	cyclohexyl	MP = 180-183 (dimaleate)
147	1-Me-1-propynyl	O	CH3	cyclohexyl	MP = 174-176 (dimaleate)
148	4-CH3O—C6H4	C═NOCH3	CH3	cyclohexyl	Cl(Isobutane):(M + 1) 436, 404,
150	2-(CH3O)C6H4	CHOH	CH3	cyclohexyl	El:(M + 1) 408, 393, 282, 241, 167
151	2-thienyl	C(CH3)	CH3	cyclohexyl	MP = 147-149
		(OH)
152	4(CF3O)C6H4	SO2	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:497 (M + 1), 481,
					413, 329, 257, 238
153	2(CH3O)C6H4	CO	CH3	cyclohexyl	FAB(+ve)-HMR:(M + 1) 407, 397, 329,
					307, 260, 237,
154	CH3COOC6H4	S	CH3	cyclohexyl	El:(M + 1) 438, 395, 298, 271, 229, 167,
155	4-CH3SO2—C6H4	SO2	CH3	cyclohexyl	FAB(+ve)-HMR:(M + 1) 491, 475, 391,
					365, 273, 257
156	C6H5	SO iso A	CH3	cyclohexyl	Cl(CH4):397 (M + 1), 382, 213, 167
158	C6H5	SO iso B	CH3	cyclohexyl	Cl(CH4):397 (M + 1), 382, 213, 167
159	2-pentynyl	O	CH3	cyclohexyl	191-193 (dimaleate)
160	2-thienyl	C═CH2	CH3	cyclohexyl	MP = 173-176 (dimaleate)
161	C6H5	O	CH3	(CH2)2OCOC(Me)2	Cl(CH4):439(M + 1)
				n-C3C7
162	3-butenoyl	NH	CH3	cyclohexyl	MP = 155-156
163	4(CH3O)C6H4	CH2	CH3	cyclohexyl	Cl(Isobutane):393 (M + 1), 379, 285, 225,
					169
164	3-(3,4-	NH	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:462 (M + 1), 294,
	methylenedioxy-				174, 169, 120
	phenyl)-2-
	propenoyl
165	trifluoroacetyl	NH	CH3	cyclohexyl	MP = 127-130
166	CH3	C═N—O-2-	CH3	cyclohexyl	MP = 173-174 (dimaleate)
		pyrimidyl
167	4(CH3S)C6H4	S	CH3	cyclohexyl	Cl(CH4(M + 1) 427, 303, 259, 195, 167,
168	4(CH3)C6H4	SO2	CH3	(CH2)3N(Et)COC(Me)2	Cl(CH4):514 (M + 1)
				n-C3H7
169	4(CH3O)C6H4	SO	CN	cyclohexyl	SIMS-NBA-G/TG-DMSO:438 (M + 1), 411,
		IsoA			395, 331, 254, 246, 214
170	4-CH3SO2—C6H4	SO	CH3	cyclohexyl	Cl(Isobutane):(M + 1)475, 459
171	4-CH3SO—C6H4	SO	CH3	cyclohexyl	FAB(+ve)-HMR:(M + 1) 458, 443, 365, 307,
					273, 257
172	p-toluenesulfonyl	NH	CH3	cyclohexyl	El:441, 301, 273, 167, 118
173	methanesulfonyl	NH	CH3	cyclohexyl	Cl(CH4):399 (M + 1), 260, 169
174	2-propynyl	NH	CH3	cyclohexyl	Cl(CH4):326 (M + 1), 195, 158
175	2-pyrimidinyl	S	CN	cyclohexyl	Cl(CH4):394 (M + 1), 367, 257, 217, 167.
176	4-Me-1-piperazinyl	SO2	CH3	cyclohexyl	Cl(CH4):435 (M + 1), 269, 217, 183, 170,
					167.
177	4(CH3O)C6H4	SO	CN	cyclohexyl	SIMS-NBA-G/TG-DMSO:438(M + 1), 411,
		IsoB	IsoB		395, 331, 254, 246, 214
178	C6H4	SO	CN	cyclohexyl	Cl(Isobutane):(M + 1) 408, 381, 233, 169
		ISO B
179	2-pyrimidinyl	SO	CN	cyclohexyl	SIMS-NBA-G/TG-DMSO) 410 (M + 1),
					383, 331, 307
180	1-piperidyl	SO2	CH3	cyclohexyl	Cl(Isobutane):420 (M + 1), 376, 188, 167,
					140, 125, 112, 85
181	N-morpholino	SO2	CH3	cyclohexyl	Cl(Isobutane):372, (m + 1) 370, 285, 249,
					204, 191, 170, 167, 119, 100, 88
182	2-thiazolyl	S	CH3	cyclohexyl	179-180 dimaleate
183	2-thiazolyl	SO	CH3	cyclohexyl	MP = 179-180 (dimaleate)
184	6-Cl-3-pyridazinyl	S	CH3	cyclohexyl	MP = 123-125
185	6-Cl-3-pyridazinyl	SO2	CH3	cyclohexyl	MP = 154-156
186	6-Cl-3-pyridazinyl	SO	CH3	cyclohexyl	MP = 135-137
187	4-(CH3SO)C6H4	S	CH3	cyclohexyl	FAB(+ve)-HMR:(M + 1) 433, 427, 275,
					259, 169,
188	t-BOCNH/9C/h2)7CO	NH	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:529 (M + 1), 261
189	4(CH3O)C6H4	S	CH2NH2	cyclohexyl	Cl(Isobutane):(M + 1) 426, 395,
190	propadienyl	S	CH3	cyclohexyl	MP = 175-177 (dimaleate)
191	propadienyl	SO2	CH3	cyclohexyl	MP = 143-145 (dimaleate)
192	propadienyl	SO	CH3	cyclohexyl	MP = 159-161 (dimateate)
193	2-propynyl	SO	CH3	cyclohexyl	MP = 153-156 (dimaleate)
194	1-propynyl	S	CH3	cyclohexyl	MP = 180-183 (dimaleate)
195	2-pyrimidinyl	O	C6H5	cyclohexyl	SIMS-NBA-G/TG-DMSO:429 (M + 1), 308,
					261
196	propadienyl	O	CH3	cyclohexyl	MP = 149-152 (dimaleate)
197	4(CH3O)C6H4	SO	CN Isomer B	cyclohexyl	SIMS-NBA-G/TG-DMSO:438 (M + 1), 411,
		Isomer A			395, 331, 254, 246, 214
198	4(CH3O)C6H4	SO	CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:427 (M + 1), 343
		Isomer A
200	4(CH3O)C6H4	SO iso B	CN iso A	cyclohexyl	SIMS-NBA-G/TG-DMSO:438 (M + 1), 411,
					395, 331, 254, 246, 214
201	C6H5	O	H	cyclohexyl	Cl(CH4):351 (M + 1)
202	C6H5	O	CN	cyclohexyl	SIMS-NBA-G/TG-DMSO:375 (M + 1)
203	6-(MeNH)-	SO2	CH3	cyclohexyl	MP = 177-179
	3-pyridazinyl
204	6-(MeNH)-	SO	CH3	cyclohexyl	MP = 113-135
205	2-propynyl	S	CH3	cyclohexyl	170-173 (dimaleate)
207	4-(CH3O)C6H4	S	H	cyclohexyl	Cl(Isobutane):(M + 1) 397,
208	2-propynyt	NMe	CH3	cyclohexyl	MP = 73-76
209	2-propynyl	O	CN	cyclohexyl	MP = 125-130 (maleate)
210	6-(MeO)-3-	SO2	CH3	cyclohexyl	MP = 165-167 (dimaleate)
	pyridazinyl
211	4(CH3O)C6H4	SO iso A	CN iso A)	cyclohexyl	SIMS-NBA-G/TG-DMSO:438 (M + 1), 411,
					395, 331, 254, 246, 214
212	2-pyrimidinyl	O	cyclohexyl	cyclohexyl	Cl(Isobutane):435 (M + 1), 351
213	2-pyrimidinyl	O	CN	cyclohexyl	FAB-NBA-G/TG-DMSO:378 (M + 1), 351
214	4(CH3O)C6H4	SO2	CO2CH3	cyclohexyl	FAB-NBA-G/TG-DMSO:(m + 1)487, 455,
					429, 391, 232
215	C6H5	O	CN	cyclohexyl	Cl(CH4):376 (M + 1), 349
216	4-HO—C6H4	SO	CN	cyclohexyl	SIMS-G/TG-DMSO-30% TFA:(M + 1) 424,
					408, 397, 381
217	4-(CH3O)C6H4	SO2	cyclohexyl	cyclohexyl	El: 510, 427
218	4-(CH3O)C6H4	SO	cyclohexyl	cyclohexyl	El: 494, 411
219	4-(CH3O)C6H4	S	cyclohexyl	cyclohexyl	El: 478, 395, 328, 245, 229
220	4-(CH3O)C6H4	SO2	CONH2	cyclohexyl	SIMS-NBA-G/TG-DMSO (M + 1) 472, 456,
					427, 345, 232
221	4-(CH3O)C6H4	SO	C(NH2)═NOH	cyclohexyl	FAB-NBA-G/TG-DMSO:(m + 1)471, 411,
					391, 293, 257, 232,
222	4-(CH3O)C6H4	SO	CONH2	cyclohexyl	FAB-NBA-G/TG-DMSO:456 (M + 1), 411,
					349, 272
223	1-propynyl	S	CN	cyclohexyl	MP = 173-175 maleate
224	4-(CH3O)C6H4	SO	CO2CH3	cyclohexyl	FAB-NBA-G/TG-DMSO:471 (M + 1), 455,
					411, 364, 287, 273
225	cyclopropylmethyl	O	CH3	cyclohexyl	MP = 197-198 (dimaleate)
226	2-propynyl	S	CN	cyclohexyl	123-125 (maleate)
227(−)	2-pyrimidinyl	O	cyclohexyl	cyclohexyl	Cl(CH4):435 (M + 1), 267
228	2-pyrimidinyl	O	cyclohexyl	cyclohexyl	Cl(CH4):435 (M + 1), 267
(+)
229	1-propynyl	S	cyclohexyl	cyclohexyl	MP = 159-162 (dimaleate)
230	2-butynyl	O	CN	cyclohexyl	MP = 137-140 (maleate)
231	2-pyrimidinyl	O	1-Me-4-	cyclohexyl	El:449, 351, 282, 185.
			piperidynyl
232	2-pyriminyl	O	i-Pr	cyclohexyl	SIMS-NBA-G/TG-DMSO:395 (M + 1), 227
233	4(CH3O)C6H4	S	CO2CH3	cyclohexyl	SIMS-NBA-G/TG-DMSO:455 (M + 1), 395,
					287, 246
234	4(CH3O)C6H4	SO	5-tetrazolyl	cyclohexyl	SIMS-NBA-G/TG-DMSO:(M + 1), 481
					465, 456, 411, 395
235	2-pyrimidinyl	O	cyclopentyl	cyclohexyl	M.P. = 165-8 (HCl)
236	4(CH3O)C6H4	SO	2-Me-5-	cyclohexyl	FAB-NBA-G/TG-DMSO:495 (M + 1), 471,
			tetrazolyl		438, 411, 283, 273, 246, 232
237	4(CH3O)C6H4	S	allyl	cyclohexyl	FAB-NBA-G/TG-DMSO:437 (M + 1), 395,
					313, 264, 246, 242
238	2-propynyl	O	CN	cyclohexyl	M.P.= 115-117
239	2-propynyl	O	CH3	cyclohexyl	M.P. = 178-180 (Dimaleate)
240	4(CH3O)C6H4	SO	3-TMS-4-	cyctohexyl	FAB-NBA-G/TG-DMSO: 552 (M + 1), 536,
			(1,2,3)-tri-		368, 356, 214
			azolyl
241	2-pyrimidinyl	O	allyl	cyclohexyl	M.P. = 225-7 (HCL)
199	4-(CH3)—C6H4	SO	CON(Me)2	cyclohexyl	FAB-NBA-G/TG-DMSO:468 (M + 1), 431,
					395, 304, 300
Compounds having, the formula
169
242	C6H	SO2	CH3	CH3	El:343(M), 125
243	2-pyrimidinyl	O	CN	chex	SIMS-NBA-G/TG-DMSO:377 (M + 1)
141	C6H5	O	H	chex	FAB-NBA-G/TG-DMSO: 350 (M + 1)
149	3-Cl—C6H5	SO2	═CH2	CH3	FAB-NBA-G/TG-DMSO:376 (M + 1)
Compounds having the formula
170
244	C6H5	SO2	i-Pr	N(CH3)2	FAB-NBA-G/TG-DMSO:(M + 1) 401, 356, 312,
					273
245	C6H5	SO2	1-piperidyl	Cl(CH4):(M + 1) 475, 307
246	4-CH3—C6H4	SO2	i-Pr	1-piperidyl
247	2-pyrimidinyl	O	CH3	CH3	Cl(CH4):298 (M + 1), 282, 199, 126. Cl(City)
248	4-CH3—C6H4	SO2	CH3	CH3	El:358 (M + 1), 342
249	4-CH3—C6H4	SO2	CH3	CO2Et	SIMS-NBA-G/TG-DMSO:416 (M + 1)
250	4-CH3—C6H4	SO2	CH3	benzyl	SIMS-NBA-G/TG-DMSO:434 (M + 1)
251	2-pyrimidinyl	O	CH3	1-piperidyl	Cl(CH4):367 (M + 1) 281, 199, 167
252	2-pyrimidinyl	O	CH3	chex	SIMS-NBA-G/TG-DMSO:366 (M + 1), 350
253	C6H5	SO2	H	(CH2)3N(Et)COC	SIMS-NBA-G/TG-DMSO:513 (M + 1)
				(Me)2 n-C3H7
254	C6H5	SO2	CH3	CH3	Cl(CH4):344 (M + 1)
255	C6H5	SO2	CH3	chex	Cl(CH4):412 (M + 1)
256	C6H5	O	CH3	CH3	Cl(CH4):296 (M + 1)
82	4-CH3—C6H6	SO2	CH3	chex	Cl(CH4):426 (M + 1) 342, 270, 166
Compounds having the formula
171
#	R	X	R1	R2		Mass Spectrum or MP
257	C6H5	SO2	H	chex		SIMS-G/TG-DMSO:413 (M + 1)
258	C6H5	SO2	H	chex	Isomer A	SIMS-NBA-G/TG-DMSO:413 (M + 1)
259	C6H5	SO2	H	chex	Isomer B	Cl(CH4):413 (M + 1)
260	3-Cl—C6H4	SO2	H	chex	Isomer B	SIMS-NBA-G/TG-DMSO:463, 461 (M + 1)
261	2-pyramidinyl	O	CH3	chex	Isomer A	Cl(CH4):381 (M + 1), 199.
262	2-pyramidinyl	O	CH3	chex	Isomer B	SIMS-NBA-G/TG-DMSO:381 (M + 1)
263	4(CH3O)C6H4	SO	CN	chex	Isomer A	SIMS-NBA-G/TG-DMSO:452 (M + 1)
iso A
206	4-CH3O—C6H4	SO	CN	chex	Isomer B	Cl(Isobutane):452 (M + 1), 425
IsoB	SO
Compounds having the formula
172
#	R	X	R1	R2		Mass Spectrum or MP=
265	C6H5	SO2	H	chex		El:412, 369, 181, 126.
266	C6H5	SO2	H	chex	Isomer A	SIMS-NBA-G/TG-DMSO:413 (M + 1)
267	C6H5	SO2	H	chex	Isomer B	Cl(CH4):413 (M + 1)
268	C6H5	SO2	SO2	chex		Cl(CH4):427 (M + 1)
269	2-pyrimidinyl	O	SO2	chex		SIMS-NBA-G/TG-DMSO:381 (M + 1), 199
270	2-pyrimidinyl	O	1-Me-4-	chex		Cl(CH4):464 (M + 1), 462, 282
			piperidinyl
271	2-pyrimidinyl	O	i-Pr	chex		SIMS-NBA-G/TG-DMSO:409 (M + 1), 227
272	2-pyrimidinyl	O	H	chex		Cl(CH4):367 (M + 1)
273	2-pyrimidinyl	O	n-hexyl	chex		SIMS-NBA-G/TG-DMSO:451 (M + 1), 269
274	2-pyrimidinyl	O	chex	chex		Cl(CH4):449 (M + 1), 365, 267
Iso.A
275	2-pyrimidinyl	O	chex	chex		Cl(CH4):449 (M + 1), 365, 267
Iso.B
157	C6H5	SO2	H	2-		SIMS-NBA-G/TG-DMSO:411 (M + 1)
				cyclohex
				enyl
Compounds having the formula
173
#	Mass Spectrum or MP
280	R is 4-CH3—C6H4: X is SO2:
	R1 is CH3; R2 is
174
	R3, R4, R8, R9, and R21 are H;
	Y and Z are N
	mass spec Cl(CH4):429 (M + 1)
281	R is 4-CH3—C6H4; X is SO2; R1 is CH3; R2 is chex; R3 is OCH3; R4, R8, R9, and R21 are H; and Y
	and Z are N
	mass spec Cl(CH4):457 (M + 1)
282	R is 4-CH3—C6H4; X is SO2; R1 is CH3; R2 is chex; R3 is H; R4 is F; R8, R9, and R21 are H; Y and
	Z are N
	mass spec Cl(CH4):(M + 1) 445, 289, 277, 195, 167
283	R is C6H5; X is SO2; R1 is CH3; R2 is chex; R3 is Cl; R4, R8, R9, and R21 are H; Y and Z are N;
	mass spec Cl(CH4):449, 447, (M + 1)
284	R is 4-CH3—C6H4; X is SO2; R1 is CH3; R2, R3 and R4 are H; R9 is CH2OH, R4 and R21 are H; Y
	is N; Z is CH2;
	mass spectrum Cl(CH4);374 (M + 1), 261.
285	R is 4-(CH3O)C6H4; X is
	175
	R1 is CH3; R2 is chex; R3, R4, R8, R9, and R21 are H,
	Y and Z are N
	mass spectrum El: (M + 1) 482, 467, 439, 343, 255, 211, 167
286	R is CH3;
	X is
	176
	R1 is CH3; R2 is chex; R3, R4, R8, R9 and R21 are H; Y and Z are N
	MP = 173-175 dimaleate
287	R is C6H5; X is SO2; R1 is H, R2 is chex; R3 is Cl; R4 and R5 are H; R9 is (R)—CH3, R21 is H; Y
	and Z are N;
	mass spec Cl(CH4):447 (M + 1)
288	R is 4-(CH3O)—C6H4; X is SO; R1 is CN; R2 is chex; R3, R4, R8, and R9 are H; R21 is CH2CO2CH3;
	Y and Z are N;
	mass spec SIMS-NBA-G/TG-DMSO) 510.2 (M + 1) 483.2, 307.1, 273.1, 246.1, 214
289	R is 4-(CH3O)—C6H4; X is SO; R1 is CN; R2 is chex; R3, R4, R8, and R9 are H; R21 is CH3; Y and
	Z are N
	mass spec SIMS-NBA-G/TG-DMSO:452.2 (M + 1), 425.2, 293.1, 268.1, 257.1
290	R is 4(CH3O)C6H4; X is SO; R1 is CN; R2 is chex; R3, R4, R8, and R9 are H; R21 is CO2Me; Y
	and Z are N
	mass spec FAB-NBA-G/TG-DMSO: 496 (M + 1), 480, 469, 454, 389, 312
291	R is 2-pyrimidinyl; X is O; R1 is CH3; R2 is chex; R3 and R4 are H; R8 is (S)—CH3; R9 and R21 are
	H; Y and Z are N; mass spec FAB-NBA-G/TG-DMSO:381 (M + 1), 199.
292	R is 2-pyrimidinyl; X is O; R1 is H; R2 is chex; R3 and R4 are H; R8 is (S)—CH3; R9 and R21 are H;
	Y and Z are N; mass spec FAB-NBA-G/TG-DMSO: 267 (M +1)
293	R is 2-pyrimidinyl; X is O; R1 is H; R2 is chex; R3 and R4 are H; R8 is (R)—CH3; R9 and R21 are H;
	Y and Z are N; mass spec FAB-NBA-G/TG-DMSO:367(M + 1)
294	R is 2-pyrimidinyl; X is 0; R1 is CH3; R2 is chex; R3 and R4 are H; R8 is (R)—CH3; R9 and R21 are
	H; Y and Z are N; M.P. = 170-173 (HCL)
295	R is 4-(CH3O)—C6H4; X is SO; R1 is CN; R2 is chex; R3, R4, R8 and R9 are H; R21 is CN; Y and Z
	are N; mass spec FAB-NBA-G/TG-DMSO:463 (M + 1), 436, 356, 307, 273
296	R is 4(CH3O)—C6H4; X is SO; R1 is CH3; R2 is chex; R3, R4, R8, and R9 are H; R21 is CO2Me; Y
	and Z are N; mass spec FAB-NBA-G/TG-DMSO:485 (M + 1), 471, 425, 381, 365, 338, 320
297	R is 2-propynyl; X is 0; R1 is CH3; R2 is chex; R4 is Cl; R3, R8, R9, and R21 are H; Y and Z are
	N M.P. = 172-174 (dimaleate)
298	R is 4-(CH3O)—C6H4; X is SO; R1 is CN; R2 is chex; R3, R4, R8 and R9 are H; R21 is allyl; Y and
	Z are N; mass spec FAB-NBA-G/TG-DMSO:478 (M + 1), 451, 354, 294, 246
299	R is 2-propynyl; X is O; R1 is CN; R2 is chex; R4 is Cl; R3, R8, R9 are H; Y and Z are N
	M.P. = 132-134 (maleate)
300	R is 4(CH3O)—C6H4; X is SO; R1 and R21 togehter form ═CH2; R2 is cyclobexxyl, y is CH, Z is
	N, R3, R4, R8 and R9 are H - sulfoxide isomer A
301	n is 4(CH3O)—C6H4; X is SO; R1 and R21 togehter form ═CH2; R2 is cyclohexxyl, y is CH, Z i N,
	R3, R4, R8 and R9 are H - sulfoxide isomer B; mp = 141-142
302	R is 4(CH3O)—C6H4; X is 5; R1 and R21 together form ═CH2; R2 is cyclohexyl, Y is CH, Z is N,
	R3, R4, R8 and R9 are H; mp = 227-230 (HCl)
303	R1 is C6H5; X is O; R1 and R21 together form
	177
	Y and Z are N; R2 is cyclohexyl; R3,
	R4, R8, and R9 are H; mp = 137-139
304	R is 4(CH3O)—C6H4; X is SO; R1 and R21 togehter form ═CH2; R2 is cyclohexyl, y is CH, Z is N,
	R3, R4, R8 and R9 are H - racemic mixture; mp = 122
305	R is 4(H3CO)—C6H4; X is SO; R1 and R21 together form ═O; R2 is cyclohexyl; Y is CH; Z is N;
	R3, R4, R8 and R9 are H.
306	R is C6H5, X is O, R1 and R21 together form
	178
	and Y and Z are N, R3, R4, R8 and R9
	are H; mp = 144-146 (dimaleate)

[0288] In like manner compounds 600 to 804 from the previous table were produced with the following physical data:

Com-
pound
Number Melting Point or Mass Spectral Data
600    FAB (NBA-G/TG-DMSO): 435 (M + 1), 391, 338, 324
601    mp = 164-167
602    MS CALC'D 461.2030 FOUND 461.2040
603    MS CALC'D 425 FOUND 425
604    FAB (NBA-G/TG-DMSO): 471 (M + 1), 455, 411, 364, 287
605    mp = 64-68
606    mp = 194-195
607    Mass Spec CI (ISOB): 408 (M + 1), 381, 365, 231, 169
608    MS CALC'D 453 FOUND 453
609    Mass Spec SIMS (NBA-G/TG-DMSO): 452 (M + 1), 425, 409,
       293, 232
610    Mass Spec FAB (NBA-G/TG-DMSO): 544 (M + 1), 543, 516,
       232
611    MS CALC'D 467 FOUND 467
612    mp = 142-145
613    Mass Spec CI: 452 (M + 1)
614    MS CALC'D 437 FOUND 437
615    Mass Spec SIMS (NBA-G/TG-DMSO): 452 (M + 1), 425, 409,
       293, 232
616    MS CALC'D 389 FOUND 390
617    Mass Spec FAB (NBA-G/TG-DMSO): 560 (M + 1), 559, 532,
       433, 363
618    mp = 143-145
619
620    mp = 123-124
621    Mass Spec FAB (NBA-G/TG-DMSO): 495 (M + 1), 411, 299,
       283
622    mp = 205
623    mp = 212
624    Mass Spec FAB (NBA-G/TG-DMSO): 544 (M + 1), 543, 516
625    mp = 132-134
626    Mass Spec FAB (NBA-G/TG-DMSO): 514 (M + 1 ), 513, 486,
       240
627    Mass Spec FAB (SIMS9CAL): 530 (M + 1), 425, 398
628    mp = 141-145
629    mp = 151-154
630    Mass Spec FAB (NBA-G/TG-DMSO): 560 (M + 1), 559, 532
631    Mass Spec FAB (SIMS4CAL): 515 (M + 1), 514, 487, 307, 289,
       238
632    mp = 121-124 MS CALC'D 410 FOUND 410
633    MS CALC'D 438.2200 FOUND 438.2215
634    Mass Spec CI: 436 (M + 1), 409
635    mp = 190 (dec)
636    MS CALC'D 381 FOUND 382
637    mp = 225
638    MS CALC'D 441 FOUND 442
639    mp = 253-255
640    Mass Spec FAB (NBA-G/TG-DMSO): 409 (M + 1), 381
641    MS CALC'D 454 FOUND 455
642    mp = 245
643    mp = 209
644    MS CALC'D 419.2698 FOUND 419.2706
645    mp = 248-250
646    mp = 132-133 MS CALC'D 439 FOUND 439
647    MS CALC'D 454 FOUND 455
648    mp = 210--211
649    mp = 250
650    mp = 200-203
651    MS CALC'D 380.2048 FOUND 380.2047
652    mp = 129-131 MS CALC'D 439 FOUND 439
653    mp = 188-189
654    MS CALC'D 394.2205 FOUND 394.2199
655    MS CALC'D 451.2419 FOUND 451.2404
656    mp = 227-230
657    MS CALC'D 452 FOUND 452
658    mp = 53-55
659    MS CALC'D 412.2110 FOUND 412.2111
660    MS CALC'D 412.1946 FOUND 412.1950
661    HRMS Calcd 455.2368 Found 455.2370
662    MS CALC'D 430.1852 FOUND 430.1856
663    mp = 159-163 MS CALC'D 439 FOUND 440
664    MS CALC'D 471.2318 FOUND 471.2327
665    MS CALC'D 381.2001 FOUND 381.2000
666    MS CALC'D 410.2154 FOUND 410.2158
667    mp = 241-242
668    MS CALC'D 470.2367 FOUND 470.2367
669    mp = 168-170 MS CALC'D 440 FOUND 441
670    MS CALC'D 414.1903 FOUND 414.1899
671    mp = 130.5-131.5
672    Mass Spec CI (CH4): 481 (M + 1), 465, 445, 357, 297, 249, 167
673    MS CALC'D 379.2208 FOUND 379.2210
674    MS:calcd for C28H35NSO4: 481 found 481.7.
675    MS CALC'D 395.2157 FOUND 395.2161
676    MS:calcd for C29H37NSO4: 495; found 494 (M + 1).
677    mp = 150-151
678    Mass Spec CI (CH4): 497 (M + 1), 477, 325, 167
679    MS CALC'D 387 FOUND 388
680    MS CALC'D 413.1899 FOUND 413.1892
681    MS CALC'D 411.2106 FOUND 411.2100
682    MS:calcd for C32H37NSO2: 499; found 500 (M + 1).
683    MS CALC'D 381.2001 FOUND 381.1996
684    MS CALC'D 478.2028 FOUND 478.2014
685    MS:calcd for C29H37NSO3: 479; found 480.4 (M + 1).
686    MS CALC'D 397.1950 FOUND 397.1954
687    MS CALC'D 462.2078 FOUND 462.2078
688    MS:calcd for C32H37NSO3: 515; found 516 (M + 1).
689    MS CALC'D 413.1899 FOUND 483.1892
690    MS CALC'D 379.2208 FOUND 379.2203
691    MS CALC'D 437.2263 FOUND 437.2264
692    MS CALC'D 395.2157 FOUND 395.2169
693    MS CALC'D 442.2052 FOUND 442.2057
694    MS CALC'D 442.2052 FOUND 442.2057
695    MS CALC'D 456.2572 FOUND 456.2580
696    MS CALC'D 391 FOUND 391
697    MS CALC'D 397.1950 FOUND 397.1954
698    MS CALC'D 516.2572 FOUND 516.2572
699    MS CALC'D 410.2154 FOUND 410.2154
700    mp = 215-218
701    MS CALC'D 456 FOUND 457
702    MS CALC'D 437.2263 FOUND 437.2269
703    MS CALC'D 411.2106 FOUND 411.2104
704    MS CALC'D 426.2103 FOUND 426.2117
705    MS CALC'D 440.2623 FOUND 440.2632
706    mp = 215-218
707    m.p. = 165.0-170.0° C. (.2HCl)
708    m.p. = 155.0-160.0° C. (.2HCl)
709    MS CALC'D 470.2001 FOUND 470.2007
710    mp = 248-250
711    MS:calcd for C30H40N2SO5: 540; found 541 (M + 1).
712    MS CALC'D 510.2790 FOUND 510.2787
713    MS CALC'D 466 FOUND 467
714    m.p. = 141.0-142.0° C. (free base)
715    Mass Spec FAB: 485 (M + 1), 441, 253, 209
716    MS CALC'D 428.1896 FOUND 428.1904
717    MS:calcd for C25H32N2SO3: 440; found 441.2 (M + 1).
718    MS CALC'D 420 FOUND 421
719    MS CALC'D 514 FOUND 515
720    m.p. = 90.0-95.0° C. (free base)
721    Mass Spec FAB: 485 (M + 1), 391, 273, 232
722    MS CALC'D 496.1769 FOUND 496.1765
723    MS CALC'D 497.2474 FOUND 497.2460
724    MS CALC'D 466 FOUND 467
725    MS CALC'D 498 FOUND 499
726    mp = 200-210 (dec) , Mass Spec MH+ = 433
727    mp = 210 (dec)
728    mp = 22o deg (dec)
729    MS CALC'D 427.2419 FOUND 427.2427
730
731    mp = 180 (dec)
732    mp = 200 (dec), Mass Spec MH+ = 433
733    mp = 180 deg (dec)
734    mp = 215 deg (dec)
735    MS CALC'D 443.2368 FOUND 443.2367
736    mp = 210 deg (dec)
737    mp = 200 deg (dec)
738    mp = 205 deg (dec)
739    mp = 210 deg (dec)
740
741    mp = 205 deg (dec)
742    mp = 185 deg (dec)
743    mp = 120-123
744    mp = 125-128
745    mp = 130-133
746    Mass Spec FAB (NBA-G/TG-DMSO): 480 (M + 1), 479, 452,
       311
747    mp = 208-211
748    MS CALC'D 427 FOUND 428
749    mp = 131-134
750    161-163
751    FAB MS 648 (MH+)
752    Mass Spec FAB (NBA-G/TG-DMSO): 511 (M + 1), 484
753    FAB: 495 (M + 1), 479, 411, 311
754    MS CALC'D 439 FOUND 440
755    MS CALC'D 440.2259 FOUND 440.2255
756    MS CALC'D 470 FOUND 470
757    mp = 131-132.5
758    MS:calcd for C26H35NSO2: 425; found 426.3 (M + 1).
759    MS CALC'D 455 FOUND 456
760    MS:calcd for C28H36N2SO5: 512; found 513.2 (M + 1).
761    MS CALC'D 456 FOUND 456
762    mp = 165-166 MS CALC'D 437 FOUND 438
763    MS:calcd for C28H36N2SO4: 496; found 497.3 (M + 1).
764    MS:calcd for C26H33NSO2: 423; found 424.3 (M + 1).
765    MS:calcd for C28H36N2SO3: 480; found 481.6 (M + 1).
766    MS:calcd for C26H35NSO4: 457; found 458 (M + 1).
767    MS:calcd for C26H35NSO3: 441; found 442 (M + 1).
768    mp = 149-150
769    MS:calcd for C28H37NSO4: 483; found 484 (M + 1).
770    MS CALC'D 476.2071 FOUND 476.2066
771    MS:calcd for C28H38N2SO5: 514; found 515.3 (M + 1).
772    mp = 142-143
773    mp = 143-144
774    MS:calcd for C28H37NSO5: 499; found 500 (M + 1).
775    MS CALC'D 460 FOUND 460
776    MS:calcd for C29H37NSO5: 511; found 512 (M + 1).
777    MS:calcd for C28H41N3S2O5: 563; found 564.1 (M + 1).
779    m.p. = 150.0-152.0° C. (.2HCl)
780    m.p. = 187.0-189.0° C. (.2HCl)
781    MS:calcd for C25H31NSO4: 441; found 442 (M + 1).
782    MS:calcd for C25H31NSO2: 409; found 410 (M + 1).
783    MS:calcd for C28H39N3SO5: 529; found 530.7 (M + 1).
784    m.p. = 155.0-157.0° C. (.2HCl)
785    m.p. = 135.0-137.0° C. (.2HCl)
786    MS calc'd 511.2994 found: 511.3000
787    MS:calcd for C25H31NSO3: 425; found 426 (M + 1).
788    MS:calcd for C28H39N3SO5: 529; found 530.3 (M + 1).
789    MS:calcd for C28H39N3SO3: 497; found 498.4 (M + 1).
790    MS:calcd for C28H39N3SO3: 497; found 498.3 (M + 1).
791    MS:calcd for C29H41N3SO4: 527; found 528.1 (M + 1).
792    mp = 205-210
793    Mass Spec CI: 375 (M + 1)
794    mp = 150-152
795    mp = 224-227
796    MS:calcd for C30H43N3SO3: 525; found 526 (M + 1).
797    MS:calcd for C28H40N4SO4: 528; found 529.1 (M + 1).
798    Mass Spec CI: 441 (M + 1)
799    mp = 138-140
800    mp = 143-146
801    mp = 259
802    mp = 120-122
803    mp = 215-225 (dec) Mass Spec MH+ = 473
804    mp = 195-205 (dec) Mass Spec MH+ = 473
805    mp = 228-230 (dec)

Claims

1. A compound having the structural formula I,

2. A compound of claim 1 wherein Y and Z are N

3. A compound of claim 1 wherein Y is CH and Z is N

4. A compound of claim 1 wherein R is

5. A compound of any one of claims 1 or 4 wherein R3 and R4 are H and either R1 is cycloalkyl, alkyl, or CN and R21 is H or R1 and R21 together form ═CH2 or ═O.

6. A compound of claim 5 wherein R is

7. A compound of claim 6 wherein Y and Z are N, R1 is cycloalkyl, alkyl or CN, R21 is H and R2 is cycloalkyl or

8. A compound of claim 6 wherein Y is CH, Z is N, and R2 is cycloalkyl or

9. A compound of claim 7 wherein at least one of R27 and R28 is alkyl.

10. A compound of claim 9 wherein one of R27 or R28 is methyl and the other is hydrogen.

11. A compound of claim 7 wherein R is

12. A compound of claim 8 wherein R is

13. A compound of claim 9 wherein R is

14. A compound of claim 10 wherein R is

15. A compound as defined in claim 1 selected from the group of compounds represented by the formula

16. A compound of claim 1 selected from the group consisting of compounds numbers 600 to 805 of the table of such compounds appearing in the specification.

17. A pharmaceutical composition which comprises a compound as defined in claim 1 in combination with a pharmaceutically acceptable carrier.

18. A method for treating a cognitive or neurodegenerative disease comprising administering to a patient suffering from said disease an effective amount of a compound of claim 1.

19. A method of treating a cognitive or neurodegenerative disease comprising administering to a patient suffering from said disease an effective amount of a combination of a compound of claim 1 with an acetylcholinesterase inhibitor.

20. A method of treating a cognitive or neurodegenerative disease comprising administering to a patient suffering from said disease an effective amount of a combination of an acetylcholine release enhancing compound with an acetylcholinesterase inhibitor.

21. The method of claim 20 wherein the acetylcholine release enhancing compound is an m2 selective muscarinic antagonist.

22. The method of claim 20 wherein the acetylcholine release enhancing compound is an m4 selective muscarinic antagonist.

23. A kit for treating a cognitive or neurodegenerative disease comprising in separate containers in a single package pharmaceutical compounds for use in combination, in one container a compound in accordance with claim 1 and in a separate container an acetylcholinesterase inhibitor, said compound and inhibitor each being in a pharmaceutically acceptable carrier and their combined quantities being an effective amount.

24. A kit for treating a cognitive or neurodegenerative disease comprising in separate containers in a single package pharmaceutical compounds for use in combination, in one container an acetylcholine release enhancing compound and in a separate container an acetylcholinesterase inhibitor, said compound and inhibitor each being in a pharmaceutically acceptable carrier and their combined quantities being an effective amount.

25. The kit of claim 24 wherein said acetylcholine release enhancing compound is an m2 selective muscarinic antagonist.

26. The kit of claim 24 wherein said acetylcholine release enhancing compound is an m4 selective muscarinic antagonist.