申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04797417A1
公开(公告)日:1989-01-10
The invention relates to novel furanone derivatives, having an aldose reductase-inhibitory activity, of the formula ##STR1## wherein A is a lower alkylene group, R.sup.1 is a carboxy, hydroxy, protected hydroxy or lower alkoxycarbonyl group, R.sup.2 is a hydrogen or halogen atom or a halo (lower) alkyl group, and R.sup.3 is a hydrogen atom or a hydroxy, carboxy, lower alkoxy or lower alkoxycarbonyl group.
本发明涉及一种新型呋喃酮衍生物,具有醛糖还原酶抑制活性,其化学式为##STR1##其中A是较低的烷基烃基,R.sup.1是羧基、羟基、保护羟基或较低的烷氧卡波尼基,R.sup.2是氢或卤素原子或卤代(较低)烷基基团,而R.sup.3是氢原子或羟基、羧基、较低的烷氧基或较低的烷氧卡波尼基。