申请人:Fisons plc
公开号:US04474788A1
公开(公告)日:1984-10-02
There are described compounds of formula I, ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.7, which may be the same or different, each represent hydrogen, hydroxy, alkyl Cl to 6, alkoxy C1 to 6, amino, acyl C2 to 6, acylamino C2 to 6, alkenyl C2 to 6, halogen, or alkoxy C1 to 6 substituted by phenyl, X is a hydrocarbon chain of 1 to 10 carbon atoms optionally substituted by a hydroxy group, A is --Q--COOH, Q is absent or represents a straight or branched alkylene, alkenylene or alkynylene group of up to and including 6 carbon atoms, R.sub.8 and R.sub.9, which may be the same or different, each represent hydrogen or alkyl C1 to 6 or together form a single bond, D, Y and Z, which may be th same or different, each represent sulphur, oxygen or --NR.sub.10 --, and R.sub.10 is hydrogen or alkyl C1-C6, provided that (i) when D, Z and Y are all oxygen, R.sub.8 and R.sub.9 do not together form a single bond, (ii) when D is oxygen, R.sub.8 and R.sub.9 together form a single bond, X is (CH.sub.2).sub.5, A is --COOH, one of Y and Z is sulphur and the other is oxygen, at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.7 is other than hydrogen, and pharmaceutically acceptable salts, esters and amides thereof. There are also described processes to these compounds, and pharmaceutical, e.g. anti-allergic, compositions containing them.
公式I的化合物已经描述如下,其中R.sub.1、R.sub.2、R.sub.3、R.sub.4、R.sub.5和R.sub.7,它们可能相同也可能不同,每个代表氢、羟基、烷基Cl至6、烷氧基C1至6、氨基、酰基C2至6、酰胺基C2至6、烯烃基C2至6、卤素或被苯基取代的烷氧基C1至6,X是1至10个碳原子的烃链,可选择性地被羟基取代,A是--Q--COOH,Q为空缺或代表最多包括6个碳原子的直链或支链烷基、烯烃基或炔烃基,R.sub.8和R.sub.9,它们可能相同也可能不同,每个代表氢或烷基C1至6或一起形成单键,D、Y和Z,它们可能相同也可能不同,每个代表硫、氧或--NR.sub.10 --,R.sub.10是氢或烷基C1-C6,但要求(i)当D、Z和Y全部为氧时,R.sub.8和R.sub.9不得一起形成单键,(ii)当D为氧时,R.sub.8和R.sub.9一起形成单键,X为(CH.sub.2).sub.5,A为--COOH,Y和Z中的一个是硫,另一个是氧,R.sub.1、R.sub.2、R.sub.3、R.sub.4、R.sub.5和R.sub.7中至少有一个不是氢,以及其药学上可接受的盐、酯和酰胺。还描述了这些化合物的过程,以及含有它们的药物,例如抗过敏剂组合物。