| abstract |
1525958 2[Heterocyclic substituted alkyl sulphinyl] benzimidazoles; their preparation and their pharmaceutical compositions HASSLE AB 20 Oct 1975 43039/75 Heading C2C The invention comprises compounds having the general Formula I or a therapeutically acceptable salt thereof in which R and R<SP>3</SP> are independently hydrogen, alkyl, halogen, cyano, carboxy, carboxyalkyl, carboalkoxy, carboalkoxyalkyl, carbamoyl, carbamoylalkyl, hydroxy, alkoxy, hydroxyalkyl, trifluoromethyl or carboxylic acid acyl; R<SP>4</SP> is hydrogen, alkyl, carboxylic acid acyl, carboalkoxy, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylcarbonylmethyl, alkoxycarbonylmethyl or alkylsulphonyl; R<SP>6</SP> is a straight or branched C 1-4 alkylene group having only one carbon atom linking S and Het, and Het is 2-quinolyl or 2-pyridyl optionally substituted by C 1-4 alkyl groups or halogen and processes for their preparation which include oxidation of the corresponding sulphides and attachment of the Het, Het-R<SP>6</SP>-S- and R<SP>4</SP> moieties to the corresponding skeletal fragment. Pharmaceutical compositions which affect gastric acid secretion comprise a compound of general Formula I or a therapeutically acceptable salt thereof together with a pharmaceutically acceptable carrier or diluent. |