4-Quinolinol derivatives and agrohorticultural bactericides containing the same as active ingredient

Abstract

A new agricultural and horticultural fungicide having an excellent control effect is provided. 4-Quinolinol derivatives represented by the following formula: or agriculturally and horticulturally acceptable acid addition salts thereof.

Description

FIELD OF THE INVENTION

The present invention relates to 4-quinolinol derivatives and agricultural and horticultural fungicides containing them as active ingredients.

BACKGROUND OF THE INVENTION

JP-01246263A, JP-05202032A, JP-05271222A and JP-07285938A, which were published prior to the filing date of the present application, disclose that quinoline derivatives having a substituent, such as aryloxy, arylthio, amino, pyrimidyloxy, pyrimidylthio or benzoyl group, at 4-position of quinoline skeleton are effective against plant pathogenic fungi and useful as agricultural and horticultural fungicides. However, it has never known that a quinoline derivative having an acyloxy group at 4-position of quinoline skeleton has an excellent fungicidal activity.

And, JP-03128355A discloses 4-acyloxyquinoline derivatives structurally similar to the compound of the present invention and insecticidal and acaricidal agents containing them as active ingredients. However, it has never known that these compounds are effective against plant pathogenic fungi.

DISCLOSURE OF THE INVENTION

Many active agents having control effect against various plant diseases were discovered and various agricultural and horticultural fungicides containing them as active ingredients have been developed. Due to some problems, such as an appearance of resistant fungi, however, fungicides having higher control effect are needed.

Thus, an object of the present invention is to provide a new agricultural and horticultural fungicide having higher control effect.

The present inventors concentrated on solving the above-mentioned problem. As the result, it was found that among 4-quinolinol derivatives, 4-quinolinol derivatives having specific substituents at all of the 2, 3 and 5 to 8 positions of quinoline skeleton and their acid addition salts show excellent fungicidal activity against various plant pathogenic fungi causing blast of rice, brown spot of rice, powdery mildew of Cucurbitaceae, anthracnose of potato and the like, and thereby the present invention was completed.

Accordingly, the present invention relates to a 4-quinolinol derivative represented by the general formula (I):

wherein

R 1 represents

a hydrogen atom,

an alkali metal,

an alkaline earth metal, or

COR 4 in which R 4 is

a hydrogen atom,

an optionally substituted C 1 -C 18 alkyl group,

an optionally substituted C 2 -C 18 alkenyl group,

an optionally substituted C 3 -C 10 cycloalkyl group,

an optionally substituted phenyl lower alkyl group,

an optionally substituted phenoxy lower alkyl group,

an optionally substituted aryl group,

OR 5 in which R 5 is an optionally substituted lower alkyl group, an optionally substituted aryl group, an optionally substituted heterocycle, an optionally substituted phenyl lower alkyl group or an optionally substituted phenoxy lower alkyl group, or

NR 6 R 7 in which R 6 and R 7 are each a hydrogen atom, an optionally substituted C 1 -C 6 alkyl group or an optionally substituted phenyl group, or R 6 and R 7 together with N may form a four- to six-membered ring containing one or two heteroatoms;

R 2 represents an optionally substituted lower alkyl group;

R 3 represents

an optionally substituted C 1 -C 18 alkyl group,

an optionally substituted lower alkenyl group, or

an optionally substituted lower alkoxy group; or

R 2 and R 3 together represent —(CH 2 )m— in which m is 3 or 4; and

W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is

a halogen atom,

an optionally substituted C 1 -C 10 alkyl group,

an optionally substituted lower alkenyl group,

an optionally substituted lower alkynyl group,

an optionally substituted C 1 -C 10 alkoxy group,

an optionally substituted C 3 -C 10 cycloalkyl group,

an optionally substituted aryl group,

an optionally substituted aryloxy group,

NR 8 R 9 in which R 8 and R 9 are each a hydrogen atom, an optionally substituted C 1 -C 6 alkyl group or an optionally substituted phenyl group, or R 8 and R 9 together with N may form a four- to six-membered ring containing one or two heteroatoms,

COR 10 in which R 10 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,

COOR 11 in which R 11 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,

a nitro group or

a cyano group,

and acid addition salts thereof as well as an agricultural and horticultural fungicide containing at least one of them.

In the 4-quinolinol derivatives represented by the aforementioned general formula (I),

R 1 represents

a hydrogen atom,

an alkali metal, such as preferably sodium and potassium,

an alkaline earth metal, such as magnesium, calcium and barium, in which magnesium and calcium are preferable, or

COR 4 in which R 4 is

a hydrogen atom,

an optionally substituted C 1 -C 18 alkyl group, preferably an optionally substituted C 1 -C 8 alkyl group, more preferably a C 1 -C 4 alkyl group, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl and t-butyl,

an optionally substituted C 2 -C 18 alkenyl group, preferably an optionally substituted C 2 -C 8 alkenyl group, more preferably a C 2 -C 4 alkenyl group, such as vinyl group CH 2 ═CH—, allyl group CH 2 ═CHCH 2 — and 2-butenyl group CH 3 CH═CHCH 2 —,

an optionally substituted C 3 -C 10 cycloalkyl group, preferably an optionally substituted C 3 -C 6 cycloalkyl group,

an optionally substituted phenyl lower alkyl group,

an optionally substituted phenoxy lower alkyl group,

an optionally substituted aryl group,

OR 5 in which R 5 is an optionally substituted lower alkyl group, an optionally substituted aryl group, an optionally substituted heterocycle, an optionally substituted phenyl lower alkyl group or an optionally substituted phenoxy lower alkyl group, or

NR 6 R 7 in which R 6 and R 7 are each a hydrogen atom, an optionally substituted C 1 -C 6 alkyl group or an optionally substituted phenyl group, or R 6 and R 7 together with N may form a four- to six-membered ring containing one or two heteroatoms;

R 2 represents an optionally substituted C 1 -C 4 alkyl group;

R 3 represents

an optionally substituted C 1 -C 18 alkyl group, preferably an optionally substituted C 1 -C 6 alkyl group, more preferably a C 1 -C 4 alkyl group, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl and t-butyl,

an optionally substituted lower alkenyl group, or

an optionally substituted lower alkoxy group; or

R 2 and R 3 together represent —(CH 2 )m— in which m is 3 or 4; and

W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is

a halogen atom,

an optionally substituted C 1 -C 10 alkyl group,

an optionally substituted lower alkenyl group,

an optionally substituted lower alkynyl group,

an optionally substituted C 1 -C 10 alkoxy group,

an optionally substituted C 3 -C 10 cycloalkyl group,

an optionally substituted aryl group,

an optionally substituted aryloxy group,

NR 8 R 9 in which R 8 and R 9 are each a hydrogen atom, an optionally substituted C 1 -C 6 alkyl group or an optionally substituted phenyl group, or R 8 and R 9 together with N may form a four- to six-membered ring containing one or two heteroatoms,

COR 10 in which R 10 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,

COOR 11 in which R 11 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,

a nitro group, or

a cyano group.

Agriculturally and horticulturally acceptable acid addition salts of the 4-quinolinol derivative represented by the aforementioned general formula (I) mean salts generally usable in agriculture and horticulture, such as hydrochloride, nitrate, sulfate, phosphate and acetate.

The 4-quinolinol derivative represented by the aforementioned general formula (I) may be in the form of hydrate or solvate. Such hydrate and solvate of the compound represented by the general formula (I) are also included in the present invention.

Substituents which optionally present on the 4-quinoline derivative represented by the aforementioned general formula (I) include a halogen atom, such as fluorine, bromine and chlorine, a C 1 -C 4 alkyl group, a C 1 -C 4 alkoxy group, a hydroxyl group, a nitro group, a formyl group, a cyano group and the like.

The term “lower alkyl group” as used herein means an alkyl group containing about 1 to 4 carbon atoms, such as methyl, ethyl, propyl or butyl.

The term “lower alkenyl group” as used herein means an alkenyl group containing about 2 to 4 carbon atoms, such as vinyl, (1- or 2-)propenyl or (1-, 2- or 3-)butenyl.

The term “lower alkynyl group” as used herein means an alkynyl group containing about 2 to 4 carbon atoms, such as ethynyl, (1- or 2-)propynyl or (1-, 2- or 3-)butynyl.

The term “lower alkoxy group” as used herein means an alkoxy group containing about 1 to 4 carbon atoms, such as methoxy, ethoxy, propyloxy or butyloxy.

The term “C 1 -C 18 alkyl group” as used herein means an alkyl group, such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl or octadecyl.

The term “C 2 -C 18 alkenyl group” as used herein means, for example, vinyl, (1- or 2-)propenyl, (1-, 2- or 3-)butenyl, (1-, 2-, 3- or 4-)pentenyl, (1-, 2-, 3-, 4- or 5-)hexenyl, (1-, 2-, 3-, 4-, 5- or 6-)heptenyl, (1-, 2-, 3-, 4-, 5-, 6- or 7-)octenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7- or 8-)nonenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8- or 9-)decenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9- or 10-)undecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10- or 11-)dodecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11- or 12-)tridecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12- or 13-)tetradecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13- or 14-)pentadecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13-, 14- or 15-)hexadecenyl, (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13-, 14-, 15- or 16-)heptadecenyl, or (1-, 2-, 3-, 4-, 5-, 6-, 7-, 8-, 9-, 10-, 11-, 12-, 13-, 14-, 15-, 16- or 17-)octadecenyl.

The term “C 3 -C 10 cycloalkyl group” as used herein means, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl or cyclodecyl.

The term “C 1 -C 10 alkoxy group” as used herein means, for example, methoxy, ethoxy, propyloxy, butyloxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, nonyloxy or decyloxy.

The term “phenyl lower alkyl group” as used herein means a phenylalkyl group having a C 1 -C 4 alkyl moiety, such as benzyl, (1- or 2-)phenylethyl, (1-, 2- or 3-)phenylpropyl or (1-, 2-, 3- or 4-)phenylbutyl.

The term “phenoxy lower alkyl group” as used herein means a phenoxyalkyl group having a C 1 -C 4 alkyl moiety, such as phenoxymethyl, (1- or 2-)phenoxyethyl, (1-, 2- or 3-)phenoxypropyl or (1-, 2-, 3- or 4-)phenoxybutyl.

The following Table 1 specifically illustrates the compounds within the scope of the 4-hydroxyquinoline derivatives represented by the general formula (I) of the present invention.

Abbreviations used in Table 1 and Examples have following meanings.

	TABLE 1
	iso-C 3 H 7	isopropyl
	t-C 4 H 9	tertiary butyl
	s-C 4 H 9	secondary butyl
	c-C 5 H 9	cyclopentyl
	c-C 6 H 11	cyclohexyl
	n-pentyl	normal pentyl
com-
pound
No.	R 1	R 2	R 3	W
1	H	CH 3	CH 3	6-CH 3
2	CH 3 CO	CH 3	CH 3	6-CH 3
3	C 6 H 5 CO	CH 3	CH 3	6-CH 3
4	CH 3 OCO	CH 3	CH 3	6-CH 3
5	H	CH 3	CH 3	6-CH 3 O
6	CH 3 CO	CH 3	CH 3	6-CH 3 O
7	C 6 H 5 CO	CH 3	CH 3	6-CH 3 O
8	CH 3 OCO	CH 3	CH 3	6-CH 3 O
9	H	CH 3	CH 3	6-C 2 H 5
10	CH 3 CO	CH 3	CH 3	6-C 2 H 5
11	C 6 H 5 CO	CH 3	CH 3	6-C 2 H 5
12	CH 3 OCO	CH 3	CH 3	6-C 2 H 5
13	H	CH 3	CH 3	6-C 3 H 7
14	CH 3 CO	CH 3	CH 3	6-C 3 H 7
15	C 6 H 5 CO	CH 3	CH 3	6-C 3 H 7
16	CH 3 OCO	CH 3	CH 3	6-C 3 H 7
17	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-C 3 H 7
18	H	CH 3	CH 3	6-iso-C 3 H 7
19	CH 3 CO	CH 3	CH 3	6-iso-C 3 H 7
20	C 6 H 5 CO	CH 3	CH 3	6-iso-C 3 H 7
21	CH 3 OCO	CH 3	CH 3	6-iso-C 3 H 7
22	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-iso-C 3 H 7
23	H	CH 3	CH 3	6-iso-C 3 H 7 O
24	CH 3 CO	CH 3	CH 3	6-iso-C 3 H 7 O
25	C 6 H 5 CO	CH 3	CH 3	6-iso-C 3 H 7 O
26	CH 3 OCO	CH 3	CH 3	6-iso-C 3 H 7 O
27	C 6 H 5 OCO	CH 3	CH 3	6-iso-C 3 H 7 O
28	H	CH 3	CH 3	6-C 4 H 9
29	CH 3 CO	CH 3	CH 3	6-C 4 H 9
30	C 2 H 5 CO	CH 3	CH 3	6-C 4 H 9
31	c-C 3 H 5 CO	CH 3	CH 3	6-C 4 H 9
32	t-C 4 H 9 CO	CH 3	CH 3	6-C 4 H 9
33	C 6 H 5 CO	CH 3	CH 3	6-C 4 H 9
34	4-CH 3 O—C 6 H 4 CO	CH 3	CH 3	6-C 4 H 9
35	4-Cl—C 6 H 4 CO	CH 3	CH 3	6-C 4 H 9
36	CH 3 OCO	CH 3	CH 3	6-C 4 H 9
37	C 2 H 5 OCO	CH 3	CH 3	6-C 4 H 9
38	C 8 H 17 OCO	CH 3	CH 3	6-C 4 H 9
39	C 6 H 5 OCO	CH 3	CH 3	6-C 4 H 9
40	4-CH 3 O—C 6 H 4 CO	CH 3	CH 3	6-C 4 H 9
41	4-Cl-C 6 H 4 OCO	CH 3	CH 3	6-C 4 H 9
42	(C 2 H 5) 2 NCO	CH 3	CH 3	6-C 4 H 9
43	(C 6 H 5) 2 NCO	CH 3	CH 3	6-C 4 H 9
44	CH 3 CO	C 2 H 5	CH 3	6-C 4 H 9
45	CH 3 CO	C 3 H 7	CH 3	6-C 4 H 9
46	CH 3 CO	C 4 H 9	CH 3	6-C 4 H 9
47	CH 3 CO	CH 3	C 2 H 5	6-C 4 H 9
48	CH 3 CO	CH 3	C 3 H 7	6-C 4 H 9
49	CH 3 CO	CH 3	C 4 H 9	6-C 4 H 9
50	H	—(CH 2 ) 4 —	6-C 4 H 9
51	CH 3 CO	—(CH 2 ) 4 —	6-C 4 H 9
52	C 2 H 5 CO	—(CH 2 ) 4 —	6-C 4 H 9
53	C 6 H 5 CO	—(CH 2 ) 4 —	6-C 4 H 9
54	H	CH 3	CH 3	6-s-C 4 H 9
55	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9
56	C 2 H 5 CO	CH 3	CH 3	6-s-C 4 H 9
57	c-C 3 H 5 CO	CH 3	CH 3	6-s-C 4 H 9
58	t-C 4 H 9 CO	CH 3	CH 3	6-s-C 4 H 9
59	t-C 4 H 9 CH 2 CO	CH 3	CH 3	6-s-C 4 H 9
60	C 8 H 17 CO	CH 3	CH 3	6-s-C 4 H 9
61	C 6 H 5 CO	CH 3	CH 3	6-s-C 4 H 9
62	4-CH 3 O—C 6 H 4 CO	CH 3	CH 3	6-s-C 4 H 9
63	4-Cl—C 6 H 4 CO	CH 3	CH 3	6-s-C 4 H 9
64	2,6-di-CH 3 O—C 6 H 3 CO	CH 3	CH 3	6-s-C 4 H 9
65	CH 3 OCO	CH 3	CH 3	6-s-C 4 H 9
66	C 2 H 5 OCO	CH 3	CH 3	6-s-C 4 H 9
67	C 8 H 17 OCO	CH 3	CH 3	6-s-C 4 H 9
68	C 6 H 5 OCO	CH 3	CH 3	6-s-C 4 H 9
69	4-CH 3 O—C 6 H 4 OCO	CH 3	CH 3	6-s-C 4 H 9
70	4-Cl—C 6 H 4 OCO	CH 3	CH 3	6-s-C 4 H 9
71	(CH 3 ) 2 NCO	CH 3	CH 3	6-s-C 4 H 9
72	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-s-C 4 H 9
73	CH 3 (C 6 H 5 )NCO	CH 3	CH 3	6-s-C 4 H 9
74	(C 6 H 5 ) 2 NCO	CH 3	CH 3	6-s-C 4 H 9
75	H	CH 3	CH 3 O	6-t-C 4 H 9
76	CH 3 CO	CH 3	CH 3 O	6-t-C 4 H 9
77	H	CH 3	CH 3 O	6-s-C 4 H 9
78	CH 3 CO	CH 3	CH 3 O	6-s-C 4 H 9
79	CH 3 CO	CH 3	CF 3	6-s-C 4 H 9
80	H	CH 3	CF 3	6-s-C 4 H 9
81	CH 3 CO	CH 3	CF 3	6-t-C 4 H 9
82	H	CH 3	CF 3	6-t-C 4 H 9
83	H	CH 3	CH 3	6-t-C 4 H 9
84	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9
85	C 2 H 5 CO	CH 3	CH 3	6-t-C 4 H 9
86	c-C 3 H 5 CO	CH 3	CH 3	6-t-C 4 H 9
87	C 6 H 5 CO	CH 3	CH 3	6-t-C 4 H 9
88	CH 3 OCO	CH 3	CH 3	6-t-C 4 H 9
89	C 2 H 5 OCO	CH 3	CH 3	6-t-C 4 H 9
90	C 6 H 5 OCO	CH 3	CH 3	6-t-C 4 H 9
91	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-t-C 4 H 9
92	H	CH 3	CH 3	6-iso-C 4 H 9
93	CH 3 CO	CH 3	CH 3	6-iso-C 4 H 9
94	C 6 H 5 CO	CH 3	CH 3	6-iso-C 4 H 9
95	CH 3 OCO	CH 3	CH 3	6-iso-C 4 H 9
96	C 6 H 5 OCO	CH 3	CH 3	6-iso-C 4 H 9
97	H	CH 3	CH 3	6-C 5 H 11
98	CH 3 CO	CH 3	CH 3	6-C 5 H 11
99	C 6 H 5 CO	CH 3	CH 3	6-C 5 H 11
100	CH 3 OCO	CH 3	CH 3	6-C 5 H 11
101	C 6 H 5 OCO	CH 3	CH 3	6-C 5 H 11
102	H	CH 3	CH 3	6-c-C 5 H 9
103	CH 3 CO	CH 3	CH 3	6-c-C 5 H 9
104	C 6 H 5 CO	CH 3	CH 3	6-c-C 5 H 9
105	CH 3 OCO	CH 3	CH 3	6-c-C 5 H 9
106	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-c-C 5 H 9
107	H	CH 3	CH 3	6-C 6 H 13
108	CH 3 CO	CH 3	CH 3	6-C 6 H 13
109	C 6 H 5 CO	CH 3	CH 3	6-C 6 H 13
110	CH 3 OCO	CH 3	CH 3	6-C 6 H 13
111	H	CH 3	CH 3	6-c-C 6 H 11
112	CH 3 CO	CH 3	CH 3	6-c-C 6 H 11
113	C 2 H 5 CO	CH 3	CH 3	6-c-C 6 H 11
114	C 6 H 5 CO	CH 3	CH 3	6-c-C 6 H 11
115	4-CH 3 O—C 6 H 4 CO	CH 3	CH 3	6-c-C 6 H 11
116	4-Cl—C 6 H 4 CO	CH 3	CH 3	6-c-C 6 H 11
117	CH 3 OCO	CH 3	CH 3	6-c-C 6 H 11
118	C 6 H 5 CO	CH 3	CH 3	6-c-C 6 H 11
119	(C 2 H 5 ) 2 NCO	CH 3	CH 3	6-c-C 6 H 11
120	H	CH 3	CH 3	6-C 7 H 15
121	CH 3 CO	CH 3	CH 3	6-C 7 H 15
122	C 6 H 5 CO	CH 3	CH 3	6-C 7 H 15
123	CH 3 OCO	CH 3	CH 3	6-C 7 H 15
124	C 6 H 5 OCO	CH 3	CH 3	6-C 7 H 15
125	H	CH 3	CH 3	6-C 8 H 17
126	CH 3 CO	CH 3	CH 3	6-C 8 H 17
127	C 6 H 5 CO	CH 3	CH 3	6-C 8 H 17
128	CH 3 OCO	CH 3	CH 3	6-C 8 H 17
129	C 2 H 5 OCO	CH 3	CH 3	6-C 8 H 17
130	C 6 H 5 OCO	CH 3	CH 3	6-C 8 H 17
131	H	CH 3	CH 3	6-CF 3
132	CH 3 CO	CH 3	CH 3	6-CF 3
133	C 6 H 5 CO	CH 3	CH 3	6-CF 3
134	CH 3 OCO	CH 3	CH 3	6-CF 3
135	H	CH 3	CH 3	6-C 6 H 5 O
136	CH 3 CO	CH 3	CH 3	6-C 6 H 5 O
137	C 6 H 5 CO	CH 3	CH 3	6-C 6 H 5 O
138	H	CH 3	CH 3	5-C 2 H 5
139	H	CH 3	CH 3	5-C 3 H 7
140	H	CH 3	CH 3	7-C 2 H 5
141	H	CH 3	CH 3	7-C 3 H 7
142	H	CH 3	CH 3	8-C 2 H 5
143	H	CH 3	CH 3	8-C 3 H 7
144	H	CH 3	CH 3	6-C 4 H 9 , 8-CH 3
145	CH 3 CO	CH 3	CH 3	6-C 4 H 9 , 8-CH 3
146	H	CH 3	CH 3	6-C 4 H 9 , 8-F
147	CH 3 CO	CH 3	CH 3	6-C 4 H 9 , 8-F
148	H	CH 3	CH 3	6-C 4 H 9 , 7-CH 3
149	CH 3 CO	CH 3	CH 3	6-C 4 H 9 , 7-CH 3
150	H	CH 3	CH 3	6-C 4 H 9 , 7-F
151	CH 3 CO	CH 3	CH 3	6-C 4 H 9 , 7-F
152	H	—(CH 2 ) 3 —	6-s-C 4 H 9
153	CH 3 CO	—(CH 2 ) 3 —	6-s-C 4 H 9
154	H	CH 3	CH 3	6-N(CH 2 CH 3 ) 2
155	CH 3 CO	CH 3	CH 3	6-N(CH 2 CH 3) 2
156	H	CH 3	CH 3	6-Morpholino
157	CH 3 CO	CH 3	CH 3	6-Morpholino
158	H	—(CH 2 ) 4 —	6-iso-C 4 H 9
159	CH 3 CO	—(CH 2 ) 4 —	6-iso-C 4 H 9
160	C 2 H 5 CO	—(CH 2 ) 4 —	6-iso-C 4 H 9
161	C 6 H 5 CO	—(CH 2 ) 4 —	6-iso-C 4 H 9
162	H	—(CH 2 ) 4 —	6-s-C 4 H 9
163	CH 3 CO	—(CH 2 ) 4 —	6-s-C 4 H 9
164	C 2 H 5 CO	—(CH 2 ) 4 —	6-s-C 4 H 9
165	C 6 H 5 CO	—(CH 2 ) 4 —	6-s-C 4 H 9
166	H	—(CH 2 ) 4 —	6-N(CH 3 ) 2
167	CH 3 CO	—(CH 2 ) 4—	6-N(CH 3 ) 2
168	C 2 H 5 CO	—(CH 2 ) 4 —	6-N(CH 3 ) 2
169	C 6 H 5 CO	—(CH 2 ) 4 —	6-N(CH 3 ) 2
170	c-C 6 H 11 CO	CH 3	CH 3	6-s-C 4 H 9
171	4-NO 2 —C 6 H 4 CO	CH 3	CH 3	6-s-C 4 H 9
172	C 6 H 5 CH 2 CO	CH 3	CH 3	6-s-C 4 H 9
173	C 5 H 11 CO	CH 3	CH 3	6-s-C 4 H 9
174	C 6 H 13 CO	CH 3	CH 3	6-s-C 4 H 9
175	CH 2 ═CHCH 2 CO	CH 3	CH 3	6-s-C 4 H 9
176	iso-C 4 H 9 CO	CH 3	CH 3	6-s-C 4 H 9
177	2,6-diCl—C 6 H 3 CO	CH 3	CH 3	6-s-C 4 H 9
178	H	CH 3	CH 3	6-(1-c-pentenyl)
179	C 4 H 9 OCO	CH 3	CH 3	6-s-C 4 H 9
180	C 7 H 15 CO	CH 3	CH 3	6-s-C 4 H 9
181	H	CH 3	CH 3	6-Br
182	CH 3 CO	CH 3	CH 3	5-C 2 H 5
183	CH 3 CO	CH 3	CH 3	7-C 2 H 5
184	CH 3 CO	CH 3	CH 3	8-C 2 H 5
185	CH 3 CO	CH 3	CH 3	6-Br
186	H	CH 3	CH 3	6-C 4 H 9 , 8-Br
187	CH 3 CO	CH 3	CH 3	6-C 4 H 9 , 8-Br
188	H	CH 3	C 8 H 17	6-s-C 4 H 9
189	CH 3 CO	CH 3	C 8 H 17	6-s-C 4 H 9
190	H	CH 3	CH 3	6-Br, 8-CH 3
191	H	CH 3	CH 3	5-CH 3 , 6-Br
192	H	CH 3	CH 3	6-Br, 7-CH 3
193	H	CH 3	CH 3	6-Br, 8-F
194	H	CH 3	CH 3	6-F, 8-CH 3
195	CH 3 CO	CH 3	CH 3	6-Br, 8-CH 3
196	CH 3 CO	CH 3	CH 3	6-Br, 7-CH 3
197	CH 3 CO	CH 3	CH 3	5-CH 3 , 6-Br
198	CH 3 CO	CH 3	CH 3	6-F, 8-CH 3
199	H	CH 3	CH 3	6-CH 3 CH═C(CH 3 )
200	CH 3 CO	CH 3	CH 3	6-CH 3 CH═C(CH 3 )
201	H	CH 3	CH 3	5-CH 3 , 6-s-C 4 H 9
202	CH 3 CO	CH 3	CH 3	5-CH 3 , 6-s-C 4 H 9
203	H	CH 3	CH 3	6-s-C 4 H 9 , 7-CH 3
204	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 7-CH 3
205	H	CH 3	CH 3	6-s-C 4 H 9 , 8-CH 3
206	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 8-CH 3
207	H	CH 3	CH 3	5-F, 6-s-C 4 H 9
208	CH 3 CO	CH 3	CH 3	5-F, 6-s-C 4 H 9
209	H	CH 3	CH 3	6-s-C 4 H 9 , 7-F
210	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 7-F
211	H	CH 3	CH 3	6-s-C 4 H 9 , 8-F
212	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 8-F
213	H	CH 3	CH 3	6-s-C 4 H 9 , 8-Cl
214	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 8-Cl
215	H	CH 3	CH 3	6-n-C 4 H 9 , 8-Cl
216	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 8-Cl
217	H	CH 3	CH 3	6-t-C 4 H 9 , 8-Cl
218	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 8-Cl
219	H	CH 3	CH 3	6-s-C 4 H 9 , 8-CH 3 O
220	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 8-CH 3 O
221	H	CH 3	CH 3	6-n-C 4 H 9 , 8-CH 3 O
222	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 8-CH 3 O
223	H	CH 3	CH 3	6-t-C 4 H 9 , 8-CH 3 O
224	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 8-CH 3 O
225	H	CH 3	CH 3	6-s-C 4 H 9 , 5-Cl
226	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 5-Cl
227	H	CH 3	CH 3	6-t-C 4 H 9 , 5-Cl
228	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 5-Cl
229	H	CH 3	CH 3	6-n-C 4 H 9 , 5-Cl
230	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 5-Cl
231	H	CH 3	CH 3	6-s-C 4 H 9 , 5-CH 3 O
232	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 5-CH 3 O
233	H	CH 3	CH 3	6-n-C 4 H 9 , 5-CH 3 O
234	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 5-CH 3 O
235	H	CH 3	CH 3	6-t-C 4 H 9 , 5-OCH 3
236	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 5-OCH 3
237	H	CH 3	CH 3	6-s-C 4 H 9 , 7-Cl
238	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 7-Cl
239	H	CH 3	CH 3	6-t-C 4 H 9 , 7-Cl
240	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 7-Cl
241	H	CH 3	CH 3	6-n-C 4 H 9 , 7-Cl
242	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 7-Cl
243	H	CH 3	CH 3	6-s-C 4 H 9 , 7-CH 3 O
244	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 , 7-CH 3 O
245	H	CH 3	CH 3	6-n-C 4 H 9 , 7-CH 3 O
246	CH 3 CO	CH 3	CH 3	6-n-C 4 H 9 , 7-CH 3 O
247	H	CH 3	CH 3	6-t-C 4 H 9 , 7-CH 3 O
248	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 7-CH 3 O
249	H	CH 3	CH 3	6-t-C 4 H 9 , 8-CH 3
250	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 8-CH 3
251	H	CH 3	CH 3	6-t-C 4 H 9 , 8-F
252	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 8-F
253	H	CH 3	CH 3	6-t-C 4 H 9 , 5-CH 3
254	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 5-CH 3
255	H	CH 3	CH 3	6-t-C 4 H 9 , 5-F
256	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 5-F
257	H	CH 3	CH 3	6-t-C 4 H 9 , 7-CH 3
258	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 7-CH 3
259	H	CH 3	CH 3	6-t-C 4 H 9 , 7-F
260	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 , 7-F
261	H	CH 3	CH 3	6-CH 3 , 8-CH 3
262	CH 3 CO	CH 3	CH 3	6-CH 3 , 8-CH 3
263	H	CH 3	CH 3	5-CH 3 , 6-CH 3
264	CH 3 CO	CH 3	CH 3	5-CH 3 , 6-CH 3
265	H	CH 3	CH 3	6-CH 3 , 7-CH 3
266	CH 3 CO	CH 3	CH 3	6-CH 3 , 7-CH 3
267	H	CH 3	CH 3	6-C 2 H 5 , 8-C 2 H 5
268	CH 3 CO	CH 3	CH 3	6-C 2 H 5 , 8-C 2 H 5
269	H	CH 3	CH 3	5-C 2 H 5 , 6-C 2 H 5
270	CH 3 CO	CH 3	CH 3	5-C 2 H 5 , 6-C 2 H 5
271	H	CH 3	CH 3	6-C 2 H 5 , 7-C 2 H 5
272	CH 3 CO	CH 3	CH 3	6-C 2 H 5 , 7-C 2 H 5
273	H	CH 3	CH 3	6-iso-C 3 H 7 ,
				8-iso-C 3 H 7
274	CH 3 CO	CH 3	CH 3	6-iso-C 3 H 7 ,
				8-iso-C 3 H 7
275	H	CH 3	CH 3	5-iso-C 3 H 7 ,
				6-iso-C 3 H 7
276	CH 3 CO	CH 3	CH 3	5-iso-C 3 H 7 ,
				6-iso-C 3 H 7
277	H	CH 3	CH 3	6-iso-C 3 H 7 ,
				7-iso-C 3 H 7 ,
278	CH 3 CO	CH 3	CH 3	6-iso-C 3 H 7 ,
				7-iso-C 3 H 7 ,
279	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-s-C 4 H 9
280	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-s-C 4 H 9
281	H	CH 3	CH 3	5-s-C 4 H 9 ,
				6-s-C 4 H 9
282	CH 3 CO	CH 3	CH 3	5-s-C 4 H 9 ,
				6-s-C 4 H 9
283	H	CH 3	CH 3	6-s-C 4 H 9 ,
				7-s-C 4 H 9
284	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				7-s-C 4 H 9
285	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-t-C 4 H 9
286	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-t-C 4 H 9
287	H	CH 3	CH 3	5-t-C 4 H 9 ,
				6-t-C 4 H 9
288	CH 3 CO	CH 3	CH 3	5-t-C 4 H 9 ,
				6-t-C 4 H 9
289	H	CH 3	CH 3	6-t-C 4 H 9 ,
				7-t-C 4 H 9
290	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				7-t-C 4 H 9
291	H	CH 3	CH 3	6-c-C 3 H 4 (CH 3 )
292	CH 3 CO	CH 3	CH 3	6-c-C 3 H 4 (CH 3 )
293	H	CH 3	CH 3	6-c-C 3 H 4 (CH 3 ),
				8-CH 3
294	CH 3 CO	CH 3	CH 3	6-c-C 3 H 4 (CH 3 ),
				8-CH 3
295	H	CH 3	CH 3	6-c-C 3 H 4 (CH 3 ),
				8-Cl
296	CH 3 CO	CH 3	CH 3	6-c-C 3 H 4 (CH 3 ),
				8-Cl
297	H	CH 3	CH 3	6-c-C 3 H 5 —CH 2
298	CH 3 CO	CH 3	CH 3	6-c-C 3 H 5 —CH 2
299	H	CH 3	CH 3	6-c-C 3 H 5 —CH 2 ,
				8-CH 3
300	CH 3 CO	CH 3	CH 3	6-c-C 3 H 5 —CH 2 ,
				8-CH 3
301	H	CH 3	CH 3	6-c-C 3 H 5 —CH 2 ,
				8-Cl
302	CH 3 CO	CH 3	CH 3	6-c-C 3 H 5 —CH 2 ,
				8-Cl
303	H	CH 3	CH 3	6-C 6 H 5
304	CH 3 CO	CH 3	CH 3	6-C 6 H 5
305	H	CH 3	CH 3	6-C 6 H 5 , 8-CH 3
306	CH 3 CO	CH 3	CH 3	6-C 6 H 5 , 8-CH 3
307	H	CH 3	CH 3	6-C 6 H 5 , 8-Cl
308	CH 3 CO	CH 3	CH 3	6-C 6 H 5 , 8-Cl
309	H	CH 3	CH 3	6-(p-Cl)—C 6 H 4
310	CH 3 CO	CH 3	CH 3	6-(p-Cl)—C 6 H 4
311	H	CH 3	CH 3	6-(p-Cl)—C 6 H 4 ,
				8-CH 3
312	CH 3 CO	CH 3	CH 3	6-(p-Cl)—C 6 H 4 ,
				8-CH 3
313	H	CH 3	CH 3	6-(p-Cl)—C 6 H 4 ,
				8-Cl
314	CH 3 CO	CH 3	CH 3	6-(p-Cl)—C 6 H 4 ,
				8-Cl
315	H	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4
316	CH 3 CO	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4
317	H	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4 ,
				8-CH 3
318	CH 3 CO	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4 ,
				8-CH 3
319	H	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4 ,
				8-Cl
320	CH 3 CO	CH 3	CH 3	6-(p-CH 3 )—C 6 H 4 ,
				8-Cl
321	H	CH 3	CH 3	6-C 6 H 5 —CH 2
322	CH 3 CO	CH 3	CH 3	6-C 6 H 5 CH 2
323	H	CH 3	CH 3	6-C 6 H 5 —CH 2 ,
				8-CH 3
324	CH 3 CO	CH 3	CH 3	6-C 6 H 5 —CH 2 ,
				8-CH 3
325	H	CH 3	CH 3	6-C 6 H 5 —CH 2 ,
				8-Cl
326	CH 3 CO	CH 3	CH 3	6-C 6 H 5 —CH 2 ,
				8-Cl
327	H	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2
328	CH 3 CO	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2
329	H	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2,
				8-CH 3
330	CH 3 CO	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2 ,
				8-CH 3
331	H	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2 ,
				8-Cl
332	CH 3 CO	CH 3	CH 3	6-C 6 H 5 —C(CH 3 ) 2 ,
				8-Cl
333	H	CH 3	CH 3	6-t-C 4 H 9 —C 2
334	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 —CH 2
335	H	CH 3	CH 3	6-t-C 4 H 9 —CH 2 ,
				8-CH 3
336	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 —CH 2 ,
				8-CH 3
337	H	CH 3	CH 3	6-t-C 4 H 9 —CH 2 ,
				8-Cl
338	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 —CH 2 ,
				8-Cl
339	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 2 OH
340	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 2 OH
341	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CH 2 OH
342	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CH 2 OH
343	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 2 Cl
344	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 2 Cl
345	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CH 2 Cl
346	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CH 2 Cl
347	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-C 2 H 5
348	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-C 2 H 5
349	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-C 2 H 5
350	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-C 2 H 5
351	H	CH 3	CH 3	6-c-C 5 H 9 ,
				8-CH 3
352	CH 3 CO	CH 3	CH 3	6-c-C 5 H 9 ,
				8-CH 3
353	H	CH 3	CH 3	6-c-C 5 H 9 ,
				8-Cl
354	CH 3 CO	CH 3	CH 3	6-c-C 5 H 9 ,
				8-Cl
355	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CHO
356	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CHO
357	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CHO
358	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CHO
359	H	CH 3	CH 3	6-CH 3 CH═C(CH 3 ),
				8-CH 3
360	CH 3 CO	CH 3	CH 3	6-CH 3 CH═C(CH 3 ),
				8-CH 3
361	H	CH 3	CH 3	6-CH 3 CH═C(CH 3 ),
				8-F
362	CH 3 CO	CH 3	CH 3	6-CH 3 CH═C(CH 3 ),
				8-F
363	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CN
364	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CN
365	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CN
366	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CN
367	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-NO 2
368	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-NO 2
369	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-NO 2
370	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9 ,
				8-NO 2
371	H	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 3 OCO
372	CH 3 CO	CH 3	CH 3	6-s-C 4 H 9 ,
				8-CH 3 OCO
373	H	CH 3	CH 3	6-t-C 4 H 9 ,
				8-CH 3 OCO
374	CH 3 CO	CH 3	CH 3	6-t-C 4 H 9,
				8-CH 3 OCO

Compounds of the general formula (I)′ which comprise a part of 4-quinolinol derivatives represented by the general formula (I) can be prepared by the known method as described in JP-03128355A according to the following scheme.

Thus, a compound of the general formula (I)′ was synthesized by reacting a compound represented by the general formula (II) with a reagent represented by the general formula (III) or (IV) in the presence or absence of a base and by, if necessary, replacing a substituent of the thus obtained compound with a desired substituent. In the above formulae, R 1 to R 4 and W are as defined above. Example of the usable base includes organic amines, such as triethylamine and pyridine, or inorganic alkalis, such as sodium carbonate, potassium carbonate and sodium hydride. A compound of the general formula (II) as one of the starting materials was synthesized by a known method as described in J. Am. Chem. Soc., 70, 2402 (1948); Tetrahedron Lett., 27, 5323 (1986) using as a starting material, a substituted aniline which was commercially available or prepared by a known method. And, the reagent represented by the general formula (III) or (IV) is desirably used in an amount of 1 to 50 equivalents, preferably 1 to 10 equivalents with respect to the compound of the general formula (II). The reaction can be carried out in an inert organic solvent, such as dimethylformamide or dimethyl sulfoxide, at the temperature ranging from 0 to 140° C.

Compounds represented by the aforementioned general formula (I) have an excellent fungicidal effect against blast of rice, brown spot of rice, powdery mildew of Cucurbitaceae, anthracnose of potato and the like.

When the present compound represented by the general formula (I) is used as an active ingredient of an agricultural and horticultural fungicide, it can be used as such. However, the present compound is generally used in any formulation, such as emulsifiable concentrate, solution, wettable powder, dust formulation, granule, oil solution, aerosol or flowable, which is prepared by combining the present compound with suitable adjuvants, such as solid carrier, liquid carrier, gaseous carrier, surfactant, dispersant and other additives.

Example of the solid carrier includes talc, bentonite, clay, kaolin, diatomaceous earth, vermiculite, white carbon, calcium carbonate and the like. Example of the liquid carrier includes alcohols, such as methanol, n-hexanol and ethylene glycol; ketones, such as acetone, methyl ethyl ketone and cyclohexanone; aliphatic hydrocarbons, such as n-hexane, kerosine and kerosene; aromatic hydrocarbons, such as toluene, xylene and methylnaphthalene; ethers, such as diethyl ether, dioxane and tetrahydrofuran; esters, such as ethyl acetate; nitrites, such as acetonitrile and isobutyronitrile; acid amides, such as dimethylformamide and dimethylacetamide; vegetable oils, such as soybean oil and cottonseed oil; dimethyl sulfoxide; water; and the like. And, example of the gaseous carrier includes LPG, air, nitrogen, carbon dioxide gas, dimethyl ether and the like.

Example of the surfactant or dispersant used for emulsification, dispersion and wetting includes alkyl sulfate esters, alkyl(aryl) sulfonate salts, polyoxyalkylene alkyl(aryl) ethers, polyhydric alcohol esters, lignin sulfonate salts and the like.

And, example of the adjuvant used for improving properties of a formulation includes carboxymethylcellulose, gum arabic, polyethylene glycol, calcium stearate and the like.

The above carrier, surfactant, dispersant and adjuvant may be used alone or in combination, if necessary.

Suitable amount of the active ingredient is generally 1 to 75% by weight in emulsifiable concentrate, generally 0.3 to 25% by weight in dust formulation, generally 1 to 90% by weight in wettable powder, or generally 0.5 to 10% by weight in granule.

Each of these formulations may be used as such or after dilution. Further, each of these formulations may be used in admixture with any other fungicide, insecticide, acaricide, herbicide, plant growth regulator, fertilizer and the like.

The application methods of the agricultural and horticultural fungicide of the present invention includes foliar application, paddy water application, soil treatment, nursery box application, seed disinfection and the like. Other application methods which are generally employed by those skilled in the art, however, can also show the desired effect of the present invention.

EXAMPLES

Syntheses of the 4-quinolinol derivatives represented by the general formula (I) will be specifically illustrated by way of the following examples which are not intended to limit the invention.

Example 1

Synthesis of 4-hydroxy-2,3-dimethyl-6-n-pentyl-quinoline Compound No. 97)

1.63 Grams of 4-n-pentylaniline and 1.44 g of ethyl 2-methylacetoacetate were refluxed in benzene in the presence of a Lewis acid catalyst for 3 hours. The reaction mixture was washed with a saturated sodium hydrogencarbonate solution and a saturated brine and dried over anhydrous sodium sulfate. After the solvent was evaporated, the resultant intermediate was refluxed in diphenyl ether for 30 minutes and allowed to cool to produce precipitates, which were collected by filtration under reduced pressure to obtain 1.01 g of 4-hydroxy-2,3-dimethyl-6-n-pentyl-quinoline (yield 42%). Its NMR spectral data are shown in the following Table 2.

Examples 2 to 9

The following compounds were synthesized in the same way as that described in Example 1. NMR spectral data of the thus-obtained compounds are shown in the following Table 2.

Example 2 Compound No. 107 (yield 64%)
Example 3 Compound No. 111 (yield 56%)
Example 4 Compound No. 125 (yield 22%)
Example 5 Compound No. 131 (yield 25%)
Example 6 Compound No. 135 (yield 24%)
Example 7 Compound No. 152 (yield 34%)
Example 8 Compound No. 154 (yield 52%)
Example 9 Compound No. 156 (yield 52%)

Example 10

Synthesis of 4-acetoxy-2,3-dimethyl-6-n-pentyl-quinoline (Compound No. 98)

100 Milligrams of 4-hydroxy-2,3-dimethyl-6-n-pentyl-quinoline (Compound No. 97) was stirred in 2 ml of acetic anhydride at 120° C. for 4 hours. After the solvent was evaporated, 20 ml of ethyl acetate was added and the reaction mixture was washed with an aqueous saturated sodium hydrogencarbonate solution and a saturated brine and dried over anhydrous sodium sulfate. After the solvent was evaporated under reduced pressure, the resultant crude product was purified by column chromatography on silica gel (WAKOGEL® C-100) eluting with n-hexane/ethyl acetate (5:1) to obtain 87.4 mg of 4-acetoxy-2,3-dimethyl-6-n-pentyl-quinoline (yield 74%). Its NMR spectral data are shown in the following Table 2.

Examples 11 to 18

The following compounds were synthesized in the same way as that described in Example 10. NMR spectral data of the thus-obtained compounds are shown in the following Table 2.

Example 11 Compound No. 108 (yield 62%)
Example 12 Compound No. 112 (yield 68%)
Example 13 Compound No. 126 (yield 74%)
Example 14 Compound No. 132 (yield 8%)
Example 15 Compound No. 136 (yield 76%)
Example 16 Compound No. 153 (yield 59%)
Example 17 Compound No. 155 (yield 94%)
Example 18 Compound No. 157 (yield 87%)

Example 19

Synthesis of 4-acetoxy-6-(2-buten-2-yl)-2,3,8-trimethylquinoline (Compound No. 360)

26.6 Grams of 6-bromo-4-hydroxy-2,3,8-trimethylquinoline synthesized in the same way as that described in Example 1 was suspended in 70 ml of dimethylformamide, to which 4.4 g of 60% sodium hydride was added under cooling with ice and then the mixture was stirred at room temperature for 30 minutes. 19 Grams of benzyl bromide was added dropwise to the reaction mixture under cooling with ice and the mixture was allowed to react at room temperature overnight. After 50 ml of water was added, the reaction mixture was extracted with ethyl acetate and the organic layer was washed with a saturated brine and dried over anhydrous sodium sulfate overnight. After the solvent was evaporated under reduced pressure, the resultant crude product was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (6:1) to obtain 24.3 g of 4-benzyloxy-6-bromo-2,3,8-trimethylquinoline.

4 Grams of the thus-obtained 4-benzyloxy-6-bromo-2,3,8-trimethylquinoline was dissolved in 40 ml of anhydrous tetrahydrofuran and cooled to −78° C., to which 5 ml of a 2.5 M solution of n-butyllithium in n-hexane was added dropwise and the mixture was stirred for 10 minutes. A solution of 1.2 g of 2-butanone dissolved in 4 ml of anhydrous tetrahydrofuran was added dropwise to the reaction mixture, which was then stirred at 0° C. for 20 minutes. After 30 ml of water was added, the reaction mixture was extracted with ethyl acetate and the organic layer was washed with a saturated brine and dried over anhydrous sodium sulfate overnight. After the solvent was evaporated under reduced pressure, the residue was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (7:1) to obtain 3.5 g of 4-benzyloxy-6-(2-hydroxybutyl-2-yl)-2,3,8-trimethylquinoline.

To 2.8 g of the thus-obtained 4-benzyloxy-6-(2-hydroxybutyl-2-yl)-2,3,8-trimethylquinoline was added 10 ml of 20% sulfuric acid and the mixture was stirred at 100° C. for 80 minutes. The reaction mixture was cooled to room temperature and then neutralized with an aqueous saturated sodium carbonate solution. Precipitates were washed with water and n-hexane and then dried under reduced pressure to obtain 2.3 g of a crude product. 2.0 Grams of the crude product was suspended in 10 ml of dimethylformamide, to which 0.37 g of 60% sodium hydride was added under cooling with ice. After stirring at room temperature for 30 minutes, 0.72 g of acetyl chloride was added dropwise under cooling with ice and the mixture was stirred at room temperature for 20 hours. After 15 ml of water was added, the reaction mixture was stirred and then extracted with ethyl acetate. The organic layer was washed with a saturated brine and then dried over anhydrous sodium sulfate overnight. After the solvent was evaporated under reduced pressure, the crude product was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (9:1) to obtain 1.6 g of 4-acetoxy-6-(2-buten-2-yl)-2,3,8-trimethylquinoline (yield 42%). Its NMR spectral data are shown in the following Table 2.

Example 20

Synthesis of 4-acetoxy-6-(2-buten-2-yl)-8-fluoro-2,3-dimethylquinoline (Compound No. 362)

4-Acetoxy-6-(2-buten-2-yl)-8-fluoro-2,3-dimethylquinoline was synthesized in the same way as that described in Example 19 using 6-bromo-4-hydroxy-8-fluoro-2,3-dimethylquinoline as a starting material (yield 17%). NMR spectral data of the thus-obtained compounds are shown in the following Table 2.

Example 21

Synthesis of 4-acetoxy-6-s-butyl-2,3,8-trimethylguinoline (Compound No. 206)

To 0.41 g of 4-acetoxy-6-(2-buten-2-yl)-2,3,8-trimethylquinoline obtained in the same way as that described in Example 19 and 0.06 g of 10% palladium-carbon, 6 ml of methanol was added and hydrogen was passed therethrough to react for 16 hours at room temperature with stirring. The reaction mixture was filtered and the residue was washed twice with 2 ml of methanol. The solvent was evaporated under reduced pressure to obtain 0.37 g of 4-acetoxy-6-s-butyl-2,3,8-trimethylquinoline (yield 90%). Its NMR spectral data are shown in the following Table 2.

Example 22

Synthesis of 4-acetoxy-6-s-butyl-8-fluoro-2,3-dimethylquinoline (Compound No. 212)

0.27 Grams of 4-acetoxy-6-s-butyl-8-fluoro-2,3-dimethylquinoline was obtained using 0.37 g of 4-acetoxy-6-(2-buten-2-yl)-8-fluoro-2,3-dimethylquinoline obtained in Example 20 as a starting material in the same way as that described in Example 21 (yield 72%). Its NMR spectral data are shown in the following Table 2.

Example 23

Synthesis of 4-acetoxy-6-c-pentyl-8-methyl-2.3-dimethylquinoline (Compound No. 352)

4-Acetoxy-6-c-pentyl-8-methyl-2,3-dimethylquinoline was obtained in the same way as that described in Example 21 (yield 37%).

Example 24

Synthesis of 4-acetoxy-6-s-butyl-8-chloro-2,3-dimethylquinoline (Compound No. 214)

4.9 Grams of 4-s-butyl-aniline was dissolved in dimethylformamide, to which 4 g of N-chloro-succinimide dissolved in 20 ml of dimethylformamide was added dropwise at room temperature and the mixture was stirred overnight. The reaction mixture was poured into 100 ml of water, which was extracted with n-hexane. The organic layer was washed with a saturated brine, dried over anhydrous sodium sulfate and the solvent was evaporated under reduced pressure. Using the resultant crude 4-s-butyl-2-chloroaniline in the same way as that described in Example 1, 4-hydroxy-6-s-butyl-8-chloro-2,3-dimethylquinoline was obtained. Using it as a starting material, 287.5 mg of 4-acetoxy-6-s-butyl-8-chloro-2,3-dimethylquinoline was obtained in the same way as that described in Example 10 (yield 17%). Its NMR spectral data are shown in the following Table 2.

Examples 25 and 26

The following compounds were synthesized in the same way as that described in Example 23. NMR spectral data of the thus-obtained compounds are shown in the following Table 2.

Example 25 Compound No. 216 (yield 31%)
Example 26 Compound No. 218 (yield 8%)

Example 27

Synthesis of 4-acetoxy-6-s-butyl-8-methoxy-2,3-dimethylqunoline (Compound No. 220)

4-s-Butyl-2-methoxyaniline was obtained using 3-methoxyacetophenone as a starting material according to various known reactions. Using 530 mg of the thus-obtained 4-s-butyl-2-methoxyaniline, 264 mg of 4-acetoxy-6-s-butyl-8-methoxy-2,3-dimethylquinoline was obtained in the same way as that described in Examples 1 and 10 (yield 40%). Its NMR spectral data are shown in the following Table 2.

Examples 28 to 32

The following compounds were synthesized in the same way as that described in Example 26. NMR spectral data of the thus-obtained compounds are shown in the following table 2.

Example 28 Compound No. 262 (yield 53%)
Example 29 Compound No. 268 (yield 42%)
Example 30 Compound No. 274 (yield 49%)
Example 31 Compound No. 280 (yield 39%)
Example 32 Compound No. 348 (yield 40%)

Example 33

Synthesis of 4-acetoxy-6-s-butyl-8-formyl-2,3-dimethylquinoline (Compound No. 356)

5 Grams of 4-hydroxy-6-s-butyl-8-bromo-2,3-dimethylquinoline synthesized in the same way as that described in Example 1 was suspended in 20 ml of dimethylformamide, to which 700 mg of 60% sodium hydride was added under cooling with ice and the mixture was stirred at room temperature for 30 minutes. To the reaction mixture was added dropwise 3 g of benzyl bromide under cooling with ice and the mixture was allowed to react at room temperature overnight. After the addition of 50 ml of water, the reaction mixture was extracted with ethyl acetate. The organic layer was washed with a saturated brine and dried over anhydrous sodium sulfate overnight. After the solvent was evaporated under reduced pressure, the resultant crude product was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane to obtain 2.5 g of 4-benzyloxy-6-s-butyl-8-bromo-2,3-dimethylquinoline. 2.5 Grams of the thus-obtained 4-benzyloxy-6-s-butyl-8-bromo-2,3-dimethylquinoline was dissolved in 25 ml of anhydrous tetrahydrofuran and cooled to −78° C., to which 2.8 ml of a 2.5 M solution of n-butyl lithium in n-hexane was added dropwise and the mixture was stirred for 10 minutes. One ml of methyl formate dissolved in 2 ml of anhydrous tetrahydrofuran was added dropwise to the reaction mixture and the mixture was stirred at 0° C. for 30 minutes. After the addition of 50 ml of water, the reaction mixture was extracted with ethyl acetate. The organic layer was washed with an aqueous saturated ammonium chloride solution and a saturated brine and then dried over anhydrous sodium sulfate. After the solvent was evaporated under reduced pressure, the residue was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (20:1) to obtain 800 mg of 4-benzyloxy-6-s-butyl-8-formyl-2,3-dimethylquinoline.

800 Milligrams of the resultant 4-benzyloxy-6-s-butyl-8-formyl-2,3-dimethylquinoline was dissolved in 2.5 ml of 20% sulfuric acid and stirred at 100° C. for 1 hour. After cooling to room temperature, the reaction mixture was neutralized with an aqueous saturated sodium hydrogencarbonate solution to produce precipitates, which were washed with water and n-hexane and then dried under reduced pressure to obtain 490 mg of 4-hydroxy-6-s-butyl-8-formyl-2,3-dimethylquinoline. 440 Milligrams of 4-hydroxy-6-s-butyl-8-formyl-2,3-dimethylquinoline was suspended in a mixture of 3 ml of acetic anhydride and 0.5 ml of pyridine and the mixture was stirred at 120° C. for 1.5 hours. The reaction mixture was cooled to room temperature, neutralized with an aqueous saturated sodium hydrogencarbonate solution and extracted with ethyl acetate. The resultant organic layer was washed with a saturated brine and dried over anhydrous sodium sulfate. After the solvent was evaporated, the resultant crude product was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (10:1) to obtain 220 mg of 4-acetoxy-6-s-butyl-8-formyl-2,3-dimethylquinoline (yield 13%). Its NMR spectral data are shown in the following Table 2.

Example 34

Synthesis of 4-acetoxy-6-s-butyl-8-hydroxymethyl-2,3-dimethylquinoline (Compound No. 340)

210 Milligrams of 4-acetoxy-6-s-butyl-8-formyl-2,3-dimethylquinoline obtained in Example 33 was dissolved in 4 ml of methanol, to which 7 mg of sodium borohydride dissolved in 4 ml of methanol was added dropwise and the mixture was stirred at room temperature for 1 minute. After the addition of 20 ml of water, the reaction mixture was extracted with ethyl acetate. The resultant organic layer was washed with a saturated brine and dried over anhydrous sodium sulfate. After the solvent was evaporated under reduced pressure, the resultant crude product was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (10:1) to obtain 186 mg of 4-acetoxy-6-s-butyl-8-hydroxymethyl-2,3-dimethylquinoline (yield 84%). Its NMR spectral data are shown in the following Table 2.

Example 35

Synthesis of 4-acetoxy-6-s-butyl-8-chloromethyl-2,3-dimethylquinoline (Compound No. 344)

50 Milligrams of 4-acetoxy-6-s-butyl-8-hydroxymethyl-2,3-dimethylquinoline obtained in Example 34 was dissolved in 0.3 ml of thionyl chloride and stirred at room temperature for 4.5 hours. After thionyl chloride was evaporated under reduced pressure, 0.5 ml of acetic anhydride was added to the resultant crude product and the mixture was stirred at 120° C. for 2 hours. After acetic anhydride was evaporated under reduced pressure, the resultant residue was purified by column chromatography on silica gel (WAKOGEL® C-200) eluting with n-hexane/ethyl acetate (20:1) to obtain 12.5 mg of 4-acetoxy-6-s-butyl-8-chloromethyl-2,3-dimethylquinoline (yield 23.5%). Its NMR spectral data are shown in the following Table 2.

TABLE 2
com-
pound
No. NMR spectral data
97  11.37(1H, s), 7.83(1H, s), 7.42(1H, dd, J                                                                        1                                                                     = 8.6, J                                                                        2                                                                     = 1.6),
    7.39(1H, d, J = 8.6), 2.65(2H, t, J = 7.4), 2.36(3H, s),
    1.96(3H, s), 1.59(2H, m), 1.29(4H, m), 0.85(3H, t, J = 6.8)
    solvent: DMSO-d                                                                        6
98  7.94(1H, d, J = 8.7), 7.49(1H, dd, J                                                                        1                                                                     = 8.7, J                                                                        2                                                                     = 1.7),
    7.42(1H, s), 2.75(2H, m), 2.71(3H, s), 2.52(3H, s),
    2.25(3H, s), 1.68(2H, m), 1.34(4H, m), 0.90(3H, t, J = 6.7)
    solvent: CDCl                                                                        3
107 11.36(1H, s), 7.83(1H, br.s), 7.39(2H, m), 2.65(2H, m),
    2.35(3H, s), 1.95(3H, s), 1.58(2H, m), 1.27(6H, m),
    0.85(3H, t, J = 6.9)
    solvent: DMSO-d                                                                        6
108 7.92(1H, d, J = 8.6), 7.49(1H, d, J = 8.6), 7.42(1H, s),
    2.75(2H, t, J = 7.8), 2.71(3H, s), 2.52(3H, s), 2.24(3H, s),
    1.67(2H, m), 1.39˜1.28(6H, m), 0.88(3H, t, J = 7.6)
    solvent: CDCl                                                                        3
111 11.32(1H, s), 7.85(1H, d, J = 2.0), 7.44(1H, dd, J                                                                        1                                                                     = 8.5,
    J                                                                        2                                                                     = 2.2), 7.38(1H, d, J = 8.6), 2.60(1H, m), 2.34(3H, s),
    1.95(3H, s), 1.81(4H, m), 1.70(1H, m), 1.39(4H, m),
    1.25(1H, m)
    solvent: DMSO-d                                                                        6
112 8.18(1H, d, J = 2.0), 7.93(1H, d, J = 8.8), 7.53(1H, dd,
    J                                                                        1                                                                     = 8.8, J                                                                        2                                                                     = 2.0), 2.86(3H, s), 2.72(1H, m), 2.70(3H, s),
    2.52(3H, s), 1.80(4H, m), 1.77(1H, m), 1.46(4H, m),
    1.31(1H, m)
    solvent: CDCl                                                                        3
125 11.35(1H, s), 7.83(1H, br.s), 7.40(2H, m), 2.65(2H, m),
    2.35(3H, s), 1.95(3H, s), 1.58(2H, m), 1.27˜1.23(10H, m),
    0.84(3H, t, J = 6.6)
    solvent: DMSO-d                                                                        6
126 7.93(1H, d, J = 8.8), 7.49(1H, dd, J                                                                        1                                                                     = 8.8, J                                                                        2                                                                     = 1.9),
    7.42(1H, d, J = 1.2), 2.75(2H, t, J = 7.8), 2.71(3H, s),
    2.52(3H, s), 2.24(3H, s), 1.71˜1.25(10H, m),
    0.87(3H, t, J = 6.9)
    solvent: CDCl                                                                        3
131 11.78(1H, s), 8.33(1H, br.s), 7.86(1H, dd, J                                                                        1                                                                     = 8.8,
    J                                                                        2                                                                     = 2.0), 7.66(1H, d, J = 8.8), 2.40(3H, s), 1.98(3H, s)
    solvent: DMSO-d                                                                        6
132 8.12(1H, d, J = 9.0), 8.00(1H, br.s), 7.82(1H, dd, J                                                                        1                                                                     = 9.0,
    J                                                                        2                                                                     = 2.0), 2.54(3H, s), 2.30(3H, s), 2.28(3H, s)
    solvent: CDCl                                                                        3
135 11.53(1H, s), 7.54(1H, d, J = 9.0), 7.47(1H, d, J = 3.1),
    7.41(2H, dd, J                                                                        1                                                                     = 8.6, J                                                                        2                                                                     = 7.5), 7.37(2H, dd, J                                                                        1                                                                     = 9.0,
    J                                                                        2                                                                     = 3.1), 7.16(1H, t, J = 7.5), 7.04(2H, dd, J                                                                        2                                                                     = 8.6, J                                                                        2                                                                     = 1.0),
    2.37(3H, s), 1.94(3H, s)
    solvent: DMSO-d                                                                        6
136 7.98(1H, d, J = 9.4), 7.38(2H, br.d, J = 8.6), 7.35(1H, d,
    J = 2.7), 7.18(1H, d, J = 2.7), 7.14(1H, br.d, J = 6.7),
    7.06(2H, br.dd, J                                                                        1                                                                     = 8.6, J                                                                        2                                                                     = 0.8), 2.71(3H, s), 2.40(3H, s)
    solvent: CDCl                                                                        3
152 11.83(1H, s), 7.90(1H, s), 7.43(2H, s), 2.97(1H, t),
    2.68(3H, m), 2.04(2H, t), 1.60(2H, t), 1.23(3H, d),
    0.77(3H, t)
    solvent: DMSO-d                                                                        6
153 7.97(1H, d, J = 8.8), 7.54(1H, d, J = 1.9), 7.51(1H, dd,
    J                                                                        1                                                                     = 8.8, J                                                                        2                                                                     = 1.9), 3.19(2H, t, J = 7.7), 2.95(2H, t, J = 7.4),
    2.76(1H, m), 2.49(3H, s), 2.20(2H, quint, J = 7.4),
    1.67(2H, quint, J = 7.4), 1.31(3H, d, J = 6.9), 0.84(3H, t,
    J = 7.3)
    solvent: CDCl                                                                        3
154 11.20(1H, s), 7.36(1H, d, J = 8.7), 7.21(1H, d, J = 2.0),
    7.10(1H, dd, J                                                                        1                                                                     = 8.7, J                                                                        2                                                                     = 2.0), 3.38(4H, q, J = 6.9),
    2.34(3H, s), 1.97(3H, s), 1.11(6H, t, J = 6.9)
    solvent: DMSO-d                                                                        6
155 8.56(1H, d, J = 2.8), 7.85(1H, d, J = 9.3), 7.20(1H, dd, J                                                                        1                                                                     =
    9.3, J                                                                        2                                                                     = 2.8), 3.44(4H, q, J = 7.0), 2.64(3H, s), 2.48(3H, s),
    2.21(3H, s), 1.21(6H, t, J = 7.0)
    solvent: CDCl                                                                        3
156 11.23(1H, s), 7.40(3H, s), 3.86(4H, m), 3.11(4H, m),
    2.35(3H, s), 2.06(3H, s)
    solvent: DMSO-d                                                                        6
157 8.85(1H, d, J = 2.7), 7.90(1H, d, J = 9.2), 7.39(1H, dd,
    J                                                                        1                                                                     = 9.2, J                                                                        2                                                                     = 2.7), 3.90(4H, m), 3.26(4H, m), 2.67(3H, s),
    2.50(3H, s), 2.23(3H, s)
    solvent: CDCl                                                                        3
206 7.31(1H, s), 7.24(1H, s), 2.74(3H, s), 2.69(3H, s), 2.67(1H, m)
    2.48(3H, s), 2.21(3H, s), 1.63(2H, m), 1.27(3H, d, J = 7.0)
    0.81(3H, t, J = 7.0)
    solvent: CDCl                                                                        3
212 7.21(1H, m), 7.19(1H, m), 2.74(1H, m), 2.73(3H, s),
    2.50(3H, s)
    2.24(3H, s), 1.62(2H, m), 1.27(3H, d, J = 7.0), 0.82(3H, t,
    J = 7.0)
    solvent: CDCl                                                                        3
214 7.63(1H, d, J = 2.0), 7.34(1H, d, J = 2.0), 2.77(3H, s),
    2.73(1H, m),
    2.51(3H, s), 2.25(3H, s), 1.65(2H, m), 1.30(3H, d, J = 6.9),
    0.84(3H, t, J = 7.3)
    solvent: CDCl                                                                        3
216 7.62(1H, d, J = 1.9), 7.35(1H, d, J = 1.7), 2.77(3H, s), 2.73(2H,
    t, J = 7.8)
    2.51(3H, s), 2.25(3H, s), 1.66(2H, m), 1.39(2H, m), 0.95(3H, t,
    J = 7.3)
    solvent: CDCl                                                                        3
218 7.83(1H, d, J = 2.0), 7.51(1H, d, J = 1.9), 2.77(3H, s),
    2.51(3H, s)
    2.25(3H, s), 1.39(9H, s)
    solvent: CDCl                                                                        3
220 7.01(1H, d, J = 1.5), 6.84(1H, d, J = 1.5), 4.06(3H, s),
    2.75(3H, s)
    2.71(1H, m), 2.50(3H, s), 2.24(3H, s), 1.66(2H, m),
    1.30(3H, d, J = 6.8), 0.85(3H, t, J = 7.5)
    solvent: CDCl                                                                        3
262 7.31(1H, s), 7.27(1H, s), 2.74(3H, s), 2.70(3H, s), 2.50(3H, s),
    2.46(3H, s), 2.23(3H, s)
    solvent: CDCl                                                                        3
268 7.34(1H, s), 7.28(1H, s), 3.25(2H, q, J = 7.5), 2.77(2H, q, J =
    7.5)
    2.70(3H, s), 2.23(3H, s), 1.35(3H, t, J = 7.5), 1.30(3H, t, J =
    7.6)
    solvent: CDCl                                                                        3
274 7.40(1H, d, J = 2.0), 7.28(1H, d, J = 1.9), 4.31(1H, m),
    3.04(1H, m)
    2.69(3H, s), 2.50(3H, s), 2.23(3H, s), 1.36(6H, d, J = 6.8),
    1.31(6H, d, J = 7.0)
    solvent: CDCl                                                                        3
280 7.30(1H, d, J = 1.7), 7.24(1H, d, J = 1.7), 4.13(1H, m),
    2.73(1H, m),
    2.69(3H, s), 2.51(3H, s), 2.22(3H, s), 1.61˜1.84(4H, m)
    1.31(3H, d, J = 7.0), 1.30(3H, d, J = 7.3), 0.87(3H, t, J = 7.3),
    0.83(3H, t, J = 7.0)
    solvent: CDCl                                                                        3
334 7.90(1H, d J = 8.5), 7.44(1H, dd J1 = 8.5, J2 = 2.0), 7.37(1H, d
    J = 2.0),
    2.71(3H, s), 2.65(2H, s), 2.51(3H, s), 2.56(3H, s), 0.93(9H, s)
    solvent: CDCl                                                                        3
338 7.58(1H, d J = 1.7), 7.31(1H, d J = 1.7), 2.78(3H, s),
    2.63(2H, s),
    2.51(3H, s), 2.27(3H, s), 0.95(9H, s)
    solvent: CDCl                                                                        3
340 7.34(1H, d, J = 1.7), 7.33(1H, d, J = 1.7), 5.64(1H, br.s),
    5.12(2H, s)
    2.75(1H, m), 2.70(3H, m), 2.51(3H, s), 2.25(3H, s),
    1.65(2H, m)
    1.29(3H, d, J = 6.8), 0.83(3H, t, J = 7.3)
    solvent: CDCl                                                                        3
344 7.64(1H, d, J = 2.0), 7.39(1H, d, J = 1.9), 5.32(2H, s),
    2.75(1H, m),
    2.71(3H, s), 2.51(3H, s), 2.24(3H, s), 1.66(2H, m), 1.31(3H,
    d =, J = 6.8), 0.84(3H, t, J = 7.3)
    solvent: CDCl                                                                        3
348 7.33(1H, d, J = 2.0), 7.25(1H, d, J = 2.0), 3.25(2H, q, J = 7.4),
    2.73(1H, m), 2.70(3H, s), 2.50(3H, s), 2.23(3H, s), 1.65(2H, m),
    1.36(3H, t, J = 7.6), 1.29(3H, d, J = 7.0), 0.84(3H, t, J = 7.4)
    solvent: CDCl                                                                        3
352 7.37(1H, s), 7.29(1H, s), 3.08(1H, m), 2.73(3H,s), 2.69(3H, s),
    2.48(3H, s), 2.09(3H, s), 1.7˜2.2(8H, m)
    solvent: CDCl                                                                        3
356 11.43(1H, s), 8.12(1H, d, J = 2.2), 7.69(1H, d, J = 2.0),
    2.82(1H, m),
    2.76(3H, s), 2.54(3H, s), 2.28(3H, s), 1.69(2H, m), 1.32(3H, d,
    J = 6.8),
    0.83(3H, t, J = 7.3)
    solvent: CDCl                                                                        3
360 7.53(1H, s), 7.40(1H, s), 5.95(1H, m), 2.74(3H, s), 2.69(3H, s),
    2.50(3H, s), 2.22(3H, s), 2.07(3H, s), 1.82(3H, d, J = 6.8)
    solvent: CDCl                                                                        3
362 7.39-7.47(2H, m), 5.98(1H, m), 2.73(3H, s), 2.49(3H, s), 2.24
    (3H, s), 2.06(3H, s), 1.83(3H, d, J = 7.1)
    solvent: CDCl                                                                        3

In the above tables, S, d, t, q, quint and m mean singlet, doublet, triplet, quartet, quintet and multiplet, respectively.

And, DCDl 3 and DMSO-d 6 mean deuterium chloroform and deuterium DMSO, respectively.

The following ingredients:
Formulation Example 1 (wettable powder)
the present compound (Compound No. 29)	25%	by weight
clay	30%	by weight
diatomaceous earth	35%	by weight
calcium lignin sulfonate	3%	by weight
polyoxyethylene alkyl aryl ether	7%	by weight
were uniformly mixed and pulverized to obtain a
wettable powder.
Formulation Example 2 (dust formulation)
the present compound (Compound No. 29)	2%	by weight
clay	60%	by weight
talc	37%	by weight
calcium stearate	1%	by weight
were uniformly mixed to obtain a dust formulation.
Formulation Example 3 (emulsifiable concentrate)
the present compound (Compound No. 29)	20%	by weight
N,N-dimethylformamide	20%	by weight
xylene	50%	by weight
polyoxyethylene alkyl aryl ether	10%	by weight
were added, uniformly mixed and dissolved to obtain
an emulsifiable concentrate.
Formulation Example 4 (granule)
the present compound (Compound No. 29)	5%	by weight
bentonite	40%	by weight
talc	53%	by weight
calcium lignin sulfonate	2%	by weight
were uniformly mixed with grinding, to which water
was added, well kneaded, granulated and then dried to
obtain a granule.

Test Example 1

Test for Control Effect Against Rice Blast

A spray liquid comprising a test compound whose concentration was adjusted to be 100 ppm by dilution with water was sprayed to a rice seedling (variety: Jikkoku) of 4-leaf stage grown in a vinyl pot of 5 cm in diameter by means of a spray gun. The air-dried rice seedling was inoculated with a conidium suspension of Pyricularia oryzae on the day of said application. For 40 hours after the inoculation, the rice seeding was under moist condition to complete infection with Pyricularia oryzae and then grown in an air-conditioned greenhouse. 6 Days after the inoculation, the lesion number on the fourth-leaf was counted. The protective value was calculated by comparing the lesion number in a treated area with that in an untreated area. Then, control effect was ranked according to the following criterion.

A; protective value ≧80%

B; protective value 50 to 79%

C; protective value <50%

Results are shown in Table 3.

TABLE 3
com-
pound
No. rank
2   B
9   A
10  A
13  A
14  A
23  B
24  B
28  A
29  A
31  A
44  A
45  A
46  A
47  A
48  A
49  A
54  A
55  A
56  A
57  A
61  A
62  A
63  A
65  A
66  A
67  A
68  A
69  A
70  A
72  B
83  A
84  A
92  B
93  A
97  B
98  A
107 A
108 A
111 B
112 A
125 B
126 A
131 B
136 A
153 B
170 A
171 B
172 A
173 A
179 A
180 A
182 B
183 B
185 B
186 B
190 B
191 A
192 A
193 A
195 A
197 A
198 B
199 A
200 A
206 A
212 A
214 A
216 A
218 A
220 A
262 B
268 A
274 A
340 A
344 A
348 A
352 A
356 A
360 A
362 A

Test Example 2

Test for Control Effect Against Powdery Mildew of Cucurbitaceae

A spray liquid comprising a test compound whose concentration was adjusted to be 200 ppm by dilution with water was sprayed to a cucumber grown in a vinyl pot of 3 cm in diameter when its first foliage leaf was developed. The air-dried cucumber seedling was inoculated with a conidium suspension of Sphaerotheca fuliginea. Thereafter, the cucumber seedling was transferred in an air-conditioned greenhouse. 10 Days after the inoculation, the disease severity was observed. The protective value was calculated by comparing the disease severity in a treated area with that in an untreated area. Then, control effect was ranked according to the following criterion.

A; protective value ≧80%

B; protective value 50 to 79%

C; protective value <50%

Results are shown in Table 4.

TABLE 4
compound
No. rank
    24  A
    29  B
    45  B
    55  A
    56  A
    61  B
    65  A
    66  A
    67  A
    68  A
    71  A
    72  A
    93  A
    112 A
    136 A
    153 A
    175 A
    176 A
    185 A
    195 A
    196 A
    197 A
    214 A
    216 B
    218 A
    268 B
    340 A
    344 A
    348 A
    356 A

Test Example 3

Test for Antifungal Activity

A test compound dissolved in acetone was mixed in a potato dextrose agar medium (manufactured by Nissui Seiyaku K. K.) so that the final concentration of the test compound was 100 ppm and then poured in a Petri dish. To this Perti dish after the agar was completely solidified, a cylindrical section prepared by punching a mycelial colony of each of plant pathogenic fungi cultured in another Petri dish by means of a cork borer was inoculated and cultured at 28 or 22° C. 48 Hours after the inoculation, the diameter of the mycelial colony was determined. Control percentages were calculated by comparing the diameter of the mycelial colony in a treated area with that in an untreated area. And, antifungal effect was ranked according to the following criterion.

A; control percentage ≧80%

B; control percentage 50 to 79%

C; control percentage <50%

Results are shown in Table 5.

	TABLE 5
	Compoud No.
	Plant pathogen	10	28	29	31
	Pyricularia oryzae	A	B	A	A
	Rhizoctonia solani	C	C	C	C
	Cochlioborus miyabeanus	B	C	B	A
	Gibberella fujikuroi	C	C	B	A
	Botrytis cinerea	C	C	B	A
	Fusarium oxysporum f. sp. lycopersici	C	C	B	A
	Glomerella cingalata	B	B	A	A
	Sclerotinia minor	C	C	C	B
	Colletotrichum atramentarium	B	B	B	A
	Alternaria alternata Japanese	C	C	C	A
	pear pathotype
	Verticillium aibo-atrum	C	A	A	A

EFFECT OF THE INVENTION

The new 4-quinolinol derivatives represented by the general formula (I) of the present invention have an effective action as an agricultural and horticultural fungicide.

Claims

1. A method comprising applying a fungicide to a plant in need thereof, wherein the fungicide comprises a 4-quinolinol compound represented by the formula (I): or an agriculturally and horticulturally acceptable acid addition salt thereof, whereinR1 represents a hydrogen atom, an alkali metal, an alkaline earth metal, or COR4 in which R4 is a hydrogen atom, an optionally substituted C1-C18 alkyl group, an optionally substituted C2-C18 alkenyl group, an optionally substituted C3-C10 cycloalkyl group, an optionally substituted phenyl C1-C4 alkyl group, an optionally substituted phenoxy C1-C4 alkyl group, an optionally substituted aryl group, OR5 in which R5 is an optionally substituted C1-C4 alkyl group, an optionally substituted aryl group, an optionally substituted heterocycle, an optionally substituted phenyl C1-C4 alkyl group or an optionally substituted phenoxy C1-C4 alkyl group, or NR6R7 in which R6 and R7 are each a hydrogen atom, an optionally substituted C1-C6 alkyl group or an optionally substituted phenyl group, or R6 and R7 together with N may form a four- to six-membered ring containing one or two heteroatoms; R2 represents an optionally substituted lower alkyl group; R3 represents an optionally substituted C1-C18 alkyl group, an optionally substituted lower alkenyl group, or an optionally substituted lower alkoxy group; or R2 and R3 together represent —(CH2)m— in which m is 3 or 4; and W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is a halogen atom, an optionally substituted C1-C10 alkyl group, an optionally substituted C2-C4 alkenyl group, an optionally substituted C2-C4 alkynyl group, an optionally substituted C1-C10 alkoxy group, an optionally substituted C3-C10 cycloalkyl group, an optionally substituted aryl group, an optionally substituted aryloxy group, NR8R9 in which R8 and R9 are each a hydrogen atom, an optionally substituted C1-C6 alkyl group or an optionally substituted phenyl group, or R8 and R9 together with N may form a four- to six-membered ring containing one or two heteroatoms, COR10 in which R10 is a hydrogen atom, an optionally substituted C1-C4 alkyl group or an optionally substituted C2-C4 alkenyl group, COOR11 in which R11 is a hydrogen atom, an optionally substituted C1-C4 alkyl group or an optionally substituted C2-C4 alkenyl group, a nitro group, or a cyano group; wherein when optional substituents present, the optional group is selected from the group consisting of halogen, C1-C4 alkyl group, C1-C4 alkoxy group, hydroxyl, nitro, formyl, and cyano.

2. The method of claim 1 wherein R1 represents COR4 in which R4 is a C1-C18 alkyl group; R2 represents a C1-C4 alkyl group; R3 represents a C1-C18 alkyl group; and W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which isa halogen atom, an optionally substituted C1-C10 alkyl group, an optionally substituted C1-C10 cycloalkyl group.

3. The method of claim 2, wherein R1 is CH3CO; R2 and R3 are each CH3; and W represents two substituents which are 6-alkyl group or 6 C3-C10 cycloalkyl group optionally substituted by C1-C4 alkyl group and 8-halogen.

4. The method of claim 3, wherein W are 6-s-C4H9 and 8-F.

5. The method of claim 3, wherein W are 6-t-C4H9 and 8-Cl.

6. The method of claim 3, wherein W are 6-t-C4H9 and 8-F.

7. The method of claim 3, wherein W are 6-(1-methyl-cyclohexyl) and 8-F.