| abstract |
(57) [Summary] [Structure] General formula [Chemical formula 1] (Wherein R 1 and R 2 are a hydrogen atom, a hydroxyl group, a halogen atom, R 3 , an alkyl group, a cycloalkyl group, an aryl group, an aralkyl group, etc., Alkylthio group, R 4 is hydrogen atom, nitro group, cyano group, amino group, tetrazole group, etc., R 5 is hydrogen atom, A thieno [3,4-d] imidazole derivative represented by a halogen atom, an alkoxy group, A is a phenylene group or the like) or a salt thereof, and a method for producing the same. [Effect] This compound has a strong antihypertensive effect and is useful as a therapeutic agent for cardiovascular diseases. |