申请人:Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
公开号:US04391821A1
公开(公告)日:1983-07-05
The present invention relates to novel 7-substituted benzopyranes of formula (I), wherein R.sub.1 and R.sub.2 are hydrogen, alkyl of from 1 to 6 carbon atoms, hydroxyalkyl, alkenyl, cycloalkyl, phenylalkyl, dimethoxy-phenylalkyl, or R.sub.1 and R.sub.2 together with the joining nitrogen atom may represent a 5-7-membered heterocyclic ring, R.sub.3 is hydrogen, alkyl of from 1 to 4 carbon atoms or phenyl, R.sub.4 is hydrogen, R.sub.5 is hydrogen or phenyl, or R.sub.4 and R.sub.5 together may represent a bonding electron pair between the second and the third carbon atoms of the benzopyrane ring, R.sub.6 and R.sub.7 are hydrogen or they may represent an oxygen atom together, n is 1 or 2, with the proviso, that the pyrane ring may bear only one alkyl or phenyl substituent, and preparation process thereof. The novel compounds have valuable therapeutical effects, mainly in cardiotherapy.
本发明涉及新型7-取代苯并吡喃母核化合物,其化学式为(I),其中R.sub.1和R.sub.2是氢,碳原子数为1至6的烷基,羟烷基,烯丙基,环烷基,苯甲基,二甲氧基苯甲基,或者R.sub.1和R.sub.2与连接的氮原子一起可以表示一个5-7成员的杂环,R.sub.3是氢,碳原子数为1至4的烷基或苯基,R.sub.4是氢,R.sub.5是氢或苯基,或者R.sub.4和R.sub.5一起可以表示苯并吡喃环的第二和第三碳原子之间的一个键合电子对,R.sub.6和R.sub.7是氢,或者它们可以一起表示一个氧原子,n是1或2,前提是吡喃环只能带有一个烷基或苯基取代基,以及其制备过程。这些新型化合物具有宝贵的治疗作用,主要在心脏治疗方面。