申请人:SmithKline Corporation
公开号:US04340600A1
公开(公告)日:1982-07-20
4-Phenyl-1,2,3,4-tetrahydroisoquinolines whose structures have two hydroxy groups substituted at the 3,4-position on the 4-phenyl ring have been found to have renal vasodilating activity upon internal administration. The active ingredients are prepared by cyclizing N-(2-substituted benzyl)-1-(3,4-dimethoxyphenyl)-aminoethanol using either a Lewis acid or an acid cyclizing agent followed by demethylation at the 3,4-dimethoxyphenyl moiety.
在内部给予的情况下,已发现在4-苯基环上3,4-位置有两个羟基取代的4-苯基-1,2,3,4-四氢异喹啉具有肾脏扩血管活性。活性成分是通过使用Lewis酸或酸性环化剂使N-(2-取代苄基)-1-(3,4-二甲氧基苯基)-氨基乙醇环化制备,随后在3,4-二甲氧基苯基上进行去甲基化制备的。