Anti SRS-A carboxylic acid derivatives, processes for their production and pharmaceutical formulations containing them
申请人:FISONS plc
公开号:EP0061800A1
公开(公告)日:1982-10-06
There are described compounds of formula 1,
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 -0-, -S- or -CH2-, provided that at least one of E and G is -0- or -S-,
L, together with the carbon atoms to which it is attached, forms a benzene, furan, thiophene, indole, or pyran-2-one ring,
and pharmaceutically acceptable derivatives thereof.
所述化合物为式 1、
其中,Ra、Rb、Rc、Rd、Re、Rf 和 Rg(可以相同或不同)分别代表氢、氨基、羟基、烷氧基、烯氧基、卤素、酰基、烯基、烷基或被苯基取代的烷氧基、
Rh 是氢、烷基或-COOH。
X 是含有 2 至 10 个碳原子并可选择被羟基取代的烃链、
A 无意义或代表 Y、OY 或 SY,Y 代表可选被 C 1 至 4 烷基取代的 C 1 至 4 烃链、
E和G可以相同或不同,各自代表-0-、-S-或-CH2-,条件是E和G中至少有一个是-0-或-S-、
L 与所连接的碳原子一起形成苯环、呋喃环、噻吩环、吲哚环或吡喃-2-酮环、
及其药学上可接受的衍生物。