Novel biphenyl derivatives of the formula: wherein R.sup.1 is a substituted or unsubstituted aminocarbonyl group, aminothiocarbonyl group, a substituted or unsubstituted lower alkoxycarbonyl group, cyano group, or a group of the formula: ##STR1## one or two of R.sup.2 to R.sup.7 are hydrogen atom, and the remaining groups are the same or different and are each a lower alkoxy group, a phenyl(lower)alkoxy group or hydroxy group, or the adjacent two groups thereof combine to form a lower alkylenedioxy group, and Alk.sup.1 is a lower alkylene group, or a pharmaceutically acceptable salt thereof, which are useful for the prophylaxis and treatment of hepatic diseases, and processes for preparing the same, and intermediates therefor.
新型
联苯衍
生物的
化学式如下:其中R.sup.1是取代或未取代的
氨基羰基、
氨基
硫羰基、取代或未取代的低烷氧羰基、
氰基,或
化学式为的基团:##STR1## R.sup.2到R.sup.7中的一个或两个是氢原子,其余基团相同或不同,分别是低烷氧基、苯基(低)烷氧基或羟基,或相邻的两个基团结合形成低烷二氧基基团,Alk.sup.1是低烷基基团,或其药用可接受盐,用于预防和治疗肝病,以及制备方法和中间体。