Benzimidazole derivatives
First Claim
1. A compound of Formula I ##STR42## wherein R1 is a hydrogen atom, a (C1 -C3) alkyl group, a (C1 -C3) alkoxy group or a halogen atom;
- n is 1 to 4;
R2 is a hydrogen atom, a (C1 -C4) alkyl group, an amino (C2 -C3) alkyl group, a mono- or di- (C1 -C3) alkyl-amino (C2 -C3) alkyl group, acetyl, propionyl, butyryl, stearoyl, benzyl, phenethyl, a carboxy (C1 -C3) alkyl group, a (C1 -C3) alkoxy carbonyl (C1 -C3) alkyl group or (C2 -C4) ##STR43## wherein X is a (C1 -C3) alkoxy phenyl group benzyl, a (C1 -C3) alkoxybenzoyl or furoyl group;
A is --NR3 -- where R3 is hydrogen or (C1 -C3) alkyl, a (C1 -C4) alkylene or a (C2 -C4) alkyldiene; and
B is a heterocylic group selected from triazolyl, pyridyl, pyridazinyl pyrimidinyl, pyrazinyl, benzimidozolyl, benzothiazolyl, quinolyl and isoquinolyl, said heterocyclic group being optionally substituted by one or more (C1 -C3) alkyl, (C1 -C3) alkoxy, nitro or phenyl groups, or the physiologically acceptable acid addition salts thereof.
2 Assignments
0 Petitions
Accused Products
Abstract
Compounds are described of formula (I) ##STR1## wherein R1 is a hydrogen atom, an alkyl group, an alkoxy group, a dialkylamino group or a halogen atom; n is 1 to 4; R2 is a hydrogen atom, an alkyl group, an unsubstituted or substituted aminoalkyl group, an acyl group, an unsubstituted or substituted aralkyl group, a carboxyalkyl group, an alkoxycarbonyalkyl group or ##STR2## wherein X is an unsubstituted or substituted-phenyl, -benzyl, -benzoyl or -furoyl group; A is -NR3 - where R3 is hydrogen or alkyl, an alkylene or an alkylidene; and B is a heterocyclic group selected from triazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, benzimidazolyl, benzothiazolyl, quinolyl and isoquinolyl, said heterocyclic group being optionally substituted by one or more alkyl, alkoxy, nitro or phenyl group, and the physiologically acceptable acid addition salts thereof. The compound of formula (I) are or cardiotonic activity and thus may be useful for the treatment of circulatory diseases.
55 Citations
14 Claims
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1. A compound of Formula I ##STR42## wherein R1 is a hydrogen atom, a (C1 -C3) alkyl group, a (C1 -C3) alkoxy group or a halogen atom;
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n is 1 to 4; R2 is a hydrogen atom, a (C1 -C4) alkyl group, an amino (C2 -C3) alkyl group, a mono- or di- (C1 -C3) alkyl-amino (C2 -C3) alkyl group, acetyl, propionyl, butyryl, stearoyl, benzyl, phenethyl, a carboxy (C1 -C3) alkyl group, a (C1 -C3) alkoxy carbonyl (C1 -C3) alkyl group or (C2 -C4) ##STR43## wherein X is a (C1 -C3) alkoxy phenyl group benzyl, a (C1 -C3) alkoxybenzoyl or furoyl group; A is --NR3 -- where R3 is hydrogen or (C1 -C3) alkyl, a (C1 -C4) alkylene or a (C2 -C4) alkyldiene; and B is a heterocylic group selected from triazolyl, pyridyl, pyridazinyl pyrimidinyl, pyrazinyl, benzimidozolyl, benzothiazolyl, quinolyl and isoquinolyl, said heterocyclic group being optionally substituted by one or more (C1 -C3) alkyl, (C1 -C3) alkoxy, nitro or phenyl groups, or the physiologically acceptable acid addition salts thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification