申请人:Ono Pharmaceutical Co., Ltd.
公开号:US05013734A1
公开(公告)日:1991-05-07
The esters of phenylalkanoic acid of the formula: ##STR1## wherein R.sup.1 is 4-10 membered, saturated or unsaturated, mono- or bi-cyclic hetero ring containing as hetero atoms: (i) one or two nitrogen, (ii) two or three of nitrogen and sulfur in total, or (iii) one or two sulfur; R.sup.2 is hydrogen; or R.sup.1 and R.sup.2, taken together with a nitrogen to which they are attached, form 4-7 membered, saturated or unsaturated, mono-cyclic hetero ring containing as hetero atoms: (i) one or two nitrogen, or (ii) two or three of nitrogen and oxygen in total, the aforementioned hetero rings, represented by R.sup.1 or formed by R.sup.1 and R.sup.2, taken together with a nitrogen to which they are attached, may be substituted by one substituent selected from C1-4 alkyl and C2-5 acyl; R.sup.3 each, independently, is hydrogen or C1-4 alkyl; R.sup.4 is hydrogen, halogen, trihalomethyl, C1-4 alkyl, C1-4 alkoxy, C2-5 acyl, cyano, nitro or nitroxy; R.sup.5 each, independently, is hydrogen, C1-4 alkyl or phenyl; or the two R.sup.5 's, taken together with a carbon to which they are attached, form cyclopentane or cyclohexane; and the pharmaceutically acceptable acid addition salts thereof, have .beta..sub.1 -adrenergic receptor blocking activity, and therefore, are useful for the prevention of and/or in the treatment of cardiovascular diseases such as angina pectoris, myocardial infarction, congestive heart failure, hypertension, arrhythmia, etc.
公式:##STR1##其中,R1是4-10元的、饱和或不饱和的、单环或双环杂环,其中杂原子包括:(i)一个或两个氮,(ii)总共两个或三个氮和硫,或(iii)一个或两个硫;R2是氢;或者R1和R2与它们所连接的氮一起形成一个4-7元的饱和或不饱和的单环杂环,其中杂原子包括:(i)一个或两个氮,或(ii)总共两个或三个氮和氧,上述由R1表示或由R1和R2形成的杂环,与它们所连接的氮一起,可以被一个来自C1-4烷基和C2-5酰基的取代基所取代;R3分别独立地是氢或C1-4烷基;R4是氢、卤素、三卤甲基、C1-4烷基、C1-4烷氧基、C2-5酰基、氰基、硝基或氧化硝基;R5分别独立地是氢、C1-4烷基或苯基;或者两个R5与它们所连接的碳一起形成环戊烷或环己烷;以及它们的药学上可接受的酸盐,具有β1-肾上腺素能受体阻滞活性,因此,用于预防和/或治疗心血管疾病,如心绞痛、心肌梗死、充血性心力衰竭、高血压、心律失常等。