申请人:Fisons Limited
公开号:US04424231A1
公开(公告)日:1984-01-03
There are described compounds of formula I, ##STR1## in which Ra, Rb, Rc, Rd, Re, Rf and Rg, which may be the same or different, each represent hydrogen, amino, hydroxy, alkoxy, alkenyloxy, halogen, acyl, alkenyl, alkyl, or alkoxy substituted by phenyl, Rh is hydrogen, alkyl or --COOH. X is a hydrocarbon chain containing from 2 to 10 carbon atoms and optionally substituted by a hydroxy group, A has no significance or represents Y, OY, or SY and Y represents a C 1 to 4 hydrocarbon chain which is optionally substituted by alkyl C 1 to 4, E and G, which may be the same or different, each represent --O--, --S-- or --CH.sub.2 --, provided that at least one of E and G is --O-- or --S--, L, together with the carbon atoms to which it is attached, forms a benzene, furan, thiophene, pyrrole, or pyran-2-one ring, and pharmaceutically acceptable derivatives thereof.
描述了具有以下
化学式的化合物I,其中Ra、Rb、Rc、Rd、Re、Rf和Rg,可以相同也可以不同,每个代表氢、
氨基、羟基、烷氧基、烯基氧基、卤素、酰基、烯基、烷基或被苯基取代的烷氧基,Rh代表氢、烷基或--COOH。X是一个含有2到10个碳原子的碳氢链,可以选择性地被一个羟基取代,A没有意义或代表Y、OY或SY,Y代表一个C1到4的碳氢链,可以选择性地被烷基C1到4取代,E和G,可以相同也可以不同,每个代表--O--、--S--或--
CH2--,但至少其中之一是--O--或--S--,L与其连接的碳原子一起形成苯、
呋喃、
噻吩、
吡咯或
吡喃-2-酮环,并且其药用接受的衍
生物。