3,4-Dihydroxyphenyltetrahydrothieno[2,3-c] or [3,2-c] pyridines are prepared by cyclization of a N-thienylmethyl-2-(3',4'-dimethoxyphenyl]-ethanolamine. These compounds have renal vasodilating activity. A species is 4-(3,4-dihydroxyphenyl]-1,2,3,4-tetrahydrothieno[2,3-c]-pyridine and its pharmaceutically acceptable acid addition salts or esters.
3,4-二羟基苯基
四氢噻吩并[2,3-c]或[3,2-c]
吡啶是通过环化 N-
噻吩基甲基-2-(3',4'-二
甲氧基苯基]-
乙醇胺制备的。这些化合物具有肾血管扩张活性。其中一种是 4-(3,4-二羟基苯基)-1,2,3,4-
四氢噻吩并[2,3-c]
吡啶及其药学上可接受的酸加成盐或酯。