申请人:Snow Brand Milk Products Co., Ltd.
公开号:US05116985A1
公开(公告)日:1992-05-26
The invention provides novel compounds and salts thereof, have the structure ##STR1## wherein R.sub.1 is a guianidinobenzoyloxy group and R.sub.2 is a hydrogen atom, a hydroxy, cyano, --COR.sub.3 (wherein R.sub.3 is an amino or lower alkyl group) or --COOR.sub.4 group [wherein R.sub.4 is a hydrogen atom, lower alkyl, phenyl, benzyl or --CH.sub.2 CONR.sub.5 R.sub.6 group (wherein R.sub.5 and R.sub.6 are the same or different and selected from a hydrogen atom and lower alkyl groups)], and wherein R.sub.1 is a hydroxy group and wherein R.sub.2 is a --COR.sub.3 (wherein R.sub.3 is an amino or lower alkyl group) or --COOR.sub.4 group [wherein R.sub.4 is a (C.sub.1, C.sub.3 or C.sub.4) alkyl, phenyl, benzyl or --CH.sub.2 CONR.sub.5 R.sub.6 group (wherein R.sub.5 and R.sub.6 are the same or different and selected from a hydrogen atom and lower alkyl groups)]. The compounds, wherein R.sub.1 is a guanidinobenzoyloxy group, are useful protease inhibitors as anti-trypsin agents.
该发明提供了新型化合物及其盐,其结构为##STR1##其中R.sub.1是guianidinobenzoyloxy基团,R.sub.2是氢原子,羟基,氰基,--COR.sub.3(其中R.sub.3是氨基或低碳基基团)或--COOR.sub.4基团[其中R.sub.4是氢原子,低碳基,苯基,苄基或--CH.sub.2 CONR.sub.5 R.sub.6基团(其中R.sub.5和R.sub.6相同或不同,选择自氢原子和低碳基基团)],其中R.sub.1是羟基,R.sub.2是--COR.sub.3(其中R.sub.3是氨基或低碳基基团)或--COOR.sub.4基团[其中R.sub.4是(C.sub.1、C.sub.3或C.sub.4)低碳基,苯基,苄基或--CH.sub.2 CONR.sub.5 R.sub.6基团(其中R.sub.5和R.sub.6相同或不同,选择自氢原子和低碳基基团)]。其中R.sub.1是guanidinobenzoyloxy基团的化合物,作为抗胰蛋白酶剂的蛋白酶抑制剂是有用的。