申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04072683A1
公开(公告)日:1978-02-07
Novel (3'-alkylamino-2'-hydroxy)propoxy-3,4-dihydrocarbostyril derivatives having .beta.-adrenergic nerves blocking activity and hypotensive activity and useful as a remedy for angina pectoris, irregular pulse and hypertension, etc., represented by the formula, ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or aralkyl and R.sub.2 is C.sub.1 -C.sub.4 alkyl, are prepared by reacting a 3,4-dihydrocarbostyril derivative represented by the formula, ##STR2## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl or aralkyl, with an epihalogenohydrin represented by the formula, ##STR3## wherein X is halogen, reacting the resulting product with an alkylamine represented by the formula, R.sub.2 -- NH.sub.2 wherein R.sub.2 is as defined above, and, if necessary, reducing the resulting product.
具有β-肾上腺能神经阻滞活性和降压活性的新型(3'-烷基氨基-2'-羟基)丙氧基-3,4-二氢咔波斯蒂尔衍生物,可用作治疗心绞痛、心律不齐和高血压等疾病的药物,其化学式为,其中R1为氢、C1-C4烷基或芳基烷基,R2为C1-C4烷基。通过将化学式所代表的3,4-二氢咔波斯蒂尔衍生物与化学式所代表的环氧卤水合物反应,然后将得到的产物与化学式所代表的烷基胺反应,其中R2为如上定义的烷基,必要时,还可以还原得到的产物。