Claims
- 1. A compound of the formula: ##STR246## wherein Y represents sulfonyl (--SO.sub.2) or carbonyl ##STR247## one of R.sup.1 and R.sup.2 represents (1) hydrogen or
- (2) an alkyl of up to 16 carbon atoms or a 2-carboxyethyl
- and the other of R.sup.1 and R.sup.2 represents a group of the formula: --X--(R.sup.4)n wherein
- X represents a single-bond, sulfonyl (--SO.sub.2), an alkylene of up to 4 carbon atoms, an alkylene of up to 4 carbon atoms unsubstituted or substituted by --COOH, or benzyloxycarbonyl ##STR248## --A-- represent a pyridine or pyrrole ring, n represents an integer of 1 or 2,
- R.sup.4, which may be the same or different, represents
- (1) hydrogen, or an alkyl group of up to 8 carbon atoms,
- (2) a group of the formula: --Z.sup.41 --COOR.sup.43 wherein
- Z.sup.41 represent a single-bond, an alkylene of up to 4 carbon toms, or an alkenylene of from 2 to 4 carbon atoms, and
- R.sup.43 represents hydrogen, an alkyl of up to 4 carbon atoms or benzyl,
- R.sup.3 represents
- (1) hydrogen,
- (2) hydroxy,
- (3) an alkyl of up to 6carbon atoms,
- (4) halogen,
- (5) an alkoxy of up to 4 carbon atoms,
- (6) an acyloxy of 2 to 5 carbon atoms,
- m represents an integer of 1 or 2,
- or a pharmaceutically acceptable salt thereof.
- 2. A compound according to claim 1, wherein A is a pyridine ring.
- 3. A compound according to claim 2, which is selected from the group consisting of:
- p-[N-(.alpha.-pyridyl)sulfamoyl]phenyl ester of pivalic acid,
- p-[N-(.beta.-pyridyl)sulfamoyl]phenyl ester of pivalic acid,
- p-[N-(4-pyridyl)sulfamoyl]phenyl ester of pivalic acid,
- 2-methyl-4[N-(3-carboxypyridine-2-yl)sulfamoyl]phenyl ester of pivalic acid,
- p-[N-(.alpha.-pyridylmethyl)sulfamoyl]phenyl ester of pivalic acid,
- p-[N-(.beta.-pyridylmethyl)sulfamoyl]phenyl ester of pivalic acid,
- p-[N-(4-pyridylmethyl)sulfamoyl]phenyl ester of pivalic acid,
- 4. A compound according to claim 3, which is:
- p-[N-(.alpha.-pyridyl)sulfamoyl]phenyl ester of pivalic acid.
- 5. A compound according to claim 1, wherein Y is sulfonyl (--SO.sub.2 --).
- 6. A pharmaceutical composition for the treatment of pulmonary emphysema, atherosclerosis and rheumatoid arthritis, which comprises, as active ingredient, an effective amount of at least one compound of the formula (I) depicted in claim 1, wherein various symbols are as defined in claim 1, together with a pharmaceutically acceptable carrier.
- 7. A method for the treatment of pulmonary emphysema, atherosclerosis and rheumatoid arthritis comprising administering to a patient in need of same, a pharmaceutical composition which comprises, as active ingredient, an effective amount of at least one compound of the formula (I) of claim 1.
Priority Claims (2)
Number |
Date |
Country |
Kind |
63-145450 |
Jun 1988 |
JPX |
|
1-53541 |
Mar 1989 |
JPX |
|
Parent Case Info
This application is a Rule 62 Continuation of our application Ser. No. 07/681,364, filed Apr. 8, 1991, now abandoned which in turn is a Rule 60 Division of our application Ser. No. 07/364,994, filed Jun. 12, 1989, now U.S. Pat. No. 5,017,610, granted May 21, 1991.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2246403 |
Mar 1973 |
DEX |
1223619 |
Feb 1971 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
364994 |
Jun 1989 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
681364 |
Apr 1991 |
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