US 5,589,478 A · Benzenesulfonamide derivative and process for preparing thereof

Abstract

A benzenesulfonamide derivative of the formula [I]: ##STR1## wherein Ring A and Ring B are the same or different and each substituted or unsubstituted benzene ring, Q is a single bond or a group of the formula: --O--, --S--, --SO--, --SO.sub.2 -- or --CH2--, Y is a group of the formula: --O--, --S-- or --NH--, Alk is lower alkylene group or lower alkenylene group, Z is a single bond or a group of the formula: --O-- or --NH--, R is a substituted or unsubstituted aromatic heterocyclic or aryl group, R.sup.1 is hydrogen atom, trifluoromethyl group, substituted or unsubstituted lower alkyl group, substituted or unsubstituted lower alkenyl group, mono-- or di-lower alkylamino group, substituted or unsubstituted lower alkylthio group, substituted or unsubstituted lower alkoxy group, substituted or unsubstituted lower alkynyl group, aromatic heterocyclic group, substituted or unsubstituted aliphatic heterocyclic group or aryl group, provided that when Z is a single bond, R is a substituted or unsubstituted aromatic heterocyclic group, or a pharmaceutically acceptable salt thereof, and processes for preparing the same, these compounds having endothelin antagonistic activity and being useful in the prophylaxis or treatment of various diseases caused by endothelin.

Claims15

Dependent claims

A benzenesulfonamide derivative of the formula [I]:

##STR295## wherein Ring A is a benzene ring substituted by a lower alkyl group;
one or two lower alkoxy groups;
a lower alkoxycarbonyl-lower alkyl group;
a hydroxy-substituted lower alkyl group;
or a lower alkoxycarbonyl-lower alkoxy group,
Ring B is a benzene ring substituted by formyl group;
trifluoromethyl group;
a lower alkyl group;
one or two lower alkoxy groups;
a lower alkylenedioxy group;
a hydroxy-lower alkyl group;
or a lower alkoxycarbonyl group,
Q is a single bond or a group of the formula:
--O-- or --S--,
Y is a group of the formula:
--O--,
Alk is a lower alkylene group,
Z is a group of the formula:
--O--,
R is a phenyl group having optionally a substituent selected from amino group, nitro group, a halogen atom and a hydroxy-lower alkyl group;
a pyridyl group having optionally a substituent selected from amino group, nitro group, trifluoromethyl group and a lower alkanoylamino group;
a pyrimidinyl group having optionally a substituent selected from a halogen atom, formyl group, thienyl group, furyl group, pyridyl group, a lower alkyl group, a lower alkylthio group, a lower alkanoyl group, a lower alkynyl group, a lower alkenyloxy group, a lower alkoxy group, a lower alkylsulfinyl group, a lower alkylsulfonyl group, a cyano-substituted lower alkoxy group, thiazolyl group, a lower alkyl-substituted thienyl group, a lower alkyl-substituted pyrrolyl group, phenyl group and a lower alkoxyphenyl group;
or benzothialolyl group, and
R.sup.1 is hydrogen atom, a lower alkyl group, pyridyl group, morpholinyl group or pyrimidiny group or a pharmaceutically acceptable salt thereof.

21 more elements

Dependencies are inferred from the claim text.

Benzenesulfonamide derivative and process for preparing thereof

Life of this patent

Benzenesulfonamide derivative and process for preparing thereof

Life of this patent

Abstract

Claims15