申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04228183A1
公开(公告)日:1980-10-14
A compound of the formula: ##STR1## wherein R is methyl or 2-methylthioethyl, is prepared by either (A) condensing a compound of the formula: ##STR2## wherein R is the same as above, or a reactive derivative thereof with 3,4-diethoxycarboxyphenethylamine, or (B) condensing the compound (II) or a reactive derivative thereof with dopamine, followed by reacting the resultant product with an ethoxycarbonyl halide. The compound (I) shows potent renal blood flow-increasing activity and is useful for the treatment of renal hypertension, congestive heart failure and other diseases due to renal blood flow disturbances.
根据以下公式制备的化合物:其中R是甲基或2-甲硫基乙基,通过以下两种方法之一制备:(A)将以下公式的化合物与3,4-二乙氧基羧苯乙胺或其反应衍生物缩合,其中R与上述相同;或者(B)将化合物(II)或其反应衍生物与多巴胺缩合,然后将所得产物与乙氧羰基卤化物反应。化合物(I)具有强效的肾脏血流增加活性,并可用于治疗肾脏高血压、充血性心力衰竭和其他由肾脏血流紊乱引起的疾病。