申请人:Nihon Nohyaku Co. Ltd.
公开号:US04034102A1
公开(公告)日:1977-07-05
A 1,3-dithiolan-2-ylidene malonate derivative having the formula, ##STR1## wherein R.sup.1 and R.sup.2, which may be same or different, represent individually a C.sub.1 -C.sub.4 alkyl group; and R.sup.3 represents a chloromethyl group, a phenyl group, a group of the formula ##STR2## (where R.sup.4 and R.sup.5 represent individually a C.sub.1 -C.sub.4 alkyl group, or may form, in combination, a lower alkylene group which is sometimes intercepted by an oxygen atom), or a group of the formula ##STR3## (where M represents a hydrogen atom or a salt-foming residue; and A represents a lower alkylene group, a lower alkenylene group, a phenylene group or a cyclohexenylene group), has effects of stimulating, improving and recovering the functions of livers, and can prevent, alleviate and cure various liver damages of humans and animals when administered thereto either orally or parenterally.
具有以下公式的1,3-二硫杂环丙烯-2-基丙二酸酯衍生物,其中R1和R2分别表示C1-C4烷基,可以相同也可以不同; R3表示氯甲基基团、苯基、公式(其中,R4和R5分别表示C1-C4烷基,或者可以组合形成有时被一个氧原子截断的低位烷基基团)或者公式的基团(其中,M表示氢原子或盐形成残基;A表示低位烷基基团、低位烯基基团、苯基或环己烯基团),具有刺激、改善和恢复肝脏功能的作用,并且在口服或注射时可以预防、缓解和治愈人和动物的各种肝脏损伤。