申请人:Merck & Co., Inc.
公开号:US05591737A1
公开(公告)日:1997-01-07
New substituted azetidinones of the general Formula (I) which have been found to be potent elastase inhibitors and thereby useful anti-inflammatory and antidegenerative agents are described. ##STR1## wherein R.sub.4 is (a) ##STR2## or (b) ##STR3## where R.sub.x is carboxy C.sub.1-6 alkyl, benzyloxycarbonylC.sub.1-3 alkyl, or t-butoxycarbonylC.sub.1-3 alkyl, wherein Q is a covalent bond or ##STR4## wherein R.sub.5 and R.sub.6 are each individually C.sub.1-3 alkyl or hydrogen, Y is ##STR5## or a covalent bond.
本文描述了一般式(I)的新型取代的氮杂四元环,这些化合物被发现具有很强的弹性蛋白酶抑制作用,因此可用作抗炎和抗变性剂。其中,R.sub.4为(a)##STR2##或(b)##STR3##其中R.sub.x为羧基C.sub.1-6烷基,苄氧羰基C.sub.1-3烷基或叔丁氧羰基C.sub.1-3烷基,Q为共价键或##STR4##其中R.sub.5和R.sub.6各自为C.sub.1-3烷基或氢,Y为##STR5##或共价键。