申请人:——
公开号:US03963732A1
公开(公告)日:1976-06-15
There is provided a new process for the preparation of esters of 4,4'-dihydroxydiphenyl-(2-pyridyl)-methane of the general formula: ##SPC1## which Wherein R.sub.1 is a hydrogen atom or a sulpho group or an acyl radical and R.sub.2 is a hydrogen atom or a carboalkoxy radical, and the salts thereof with pharmaceutically-acceptable, non-toxic inorganic and organic bases. Those compounds in wich R.sub.2 is a carboalkoxy radical are new.
提供了一种制备4,4'-二羟基二苯基-(2-吡啶基)-甲烷酯的新方法,其通式为:##SPC1## 其中R.sub.1是氢原子、磺酰基或酰基基团,R.sub.2是氢原子或羧基烷氧基基团,并且与药学上可接受的、无毒的无机和有机碱盐反应。其中R.sub.2为羧基烷氧基基团的化合物是新的。