| abstract |
A 4,7-dihydroisothiazole[5,4-b]pyridine derivative represented by the general formula ##STR1## wherein R 1 represents an alkyl group which may be substituted, n R 2 represents a hydrogen atom, a hydroxyl group, a benzyloxy group, a lower alkoxy group, a group of the formula ##STR2## in which R 3 and R 4 are identical or different and each represents a hydrogen atom, a lower alkyl group, an aralkyl group, an aralkynyl group, an aryloxyalkyl group, an arylaminoalkyl group, a pyridylalkyl group or a benzazolylalkyl group, or R 3 and R 4 form a ring and represent a group of the formula ##STR3## where X represents a methine group, a nitrogen atom or an oxygen atom, n is an integer of 1 or 2, and when X is a methine group or a nitrogen atom, R 5 represents a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group, an aryl group, an aryloxy group, an aralkyl group, a furoyl group, a pyridyl group or a diphenylmethane group each of which group may be substituted, and n m is an integer of 1 to 3, n or an acid addition salt thereof. Processes for producing said derivative and a cardiovascular treating agent comprising said derivative as an active ingredient are also provided. |