申请人:Sawai Pharmaceutical Co., Ltd.
公开号:US04946855A1
公开(公告)日:1990-08-07
A compound of the formula: ##STR1## wherein the free valency of the groups A-, R- and --X--Y-- is attached to any of 2-, 4- and 5- positions of the thiazol ring, A is a C.sub.1-6 alkyl group, an aryl group which is unsubstituted or substituted with at least one substituent selected from the group consisting of hydroxy C.sub.1-6 alkoxy, aryl-(C.sub.1-6)alkoxy, halo-(C.sub.1-6)alkyl, halogen, and nitro, or 5- or 6-membered heterocyclic group containing at least one hetero atom selected from oxygen, nitrogen and sulfur, or a condensed heterocyclic group consisting of a heterocycle as defined above and a benzene nucleus, these two heterocyclic groups being unsubstituted or substituted with at least one substituent selected from halogen, R is hydrogen or a C.sub.1-6 alkyl group, X is --CO--or --NH--, and Y is --NH--or --CO--, with the proviso that (a) X and Y cannot be the same group, and (b) when X is --CO--and Y is --NH--, the group --X--Y--is attached to 2- or 5-position, or a pharmaceutically acceptable salt thereof are nobel and useful as antiallergic.
该化合物的分子式为:##STR1##其中A-、R-和--X--Y--的自由价键附着在噻唑环的2-、4-和5-位置之一,A是C.sub.1-6烷基基团,是未取代或取代的芳基基团,其取代基选自羟基C.sub.1-6烷氧基、芳基-(C.sub.1-6)烷氧基、卤代-(C.sub.1-6)烷基、卤素和硝基,或者含有氧、氮和硫中的至少一个杂原子的5-或6-成员杂环基团,或者由上述定义的杂环和苯环核组成的缩合杂环基团,这两个杂环基团未取代或取代,取代基选自卤素,R是氢或C.sub.1-6烷基基团,X是--CO--或--NH--,Y是--NH--或--CO--,但是有以下限制:(a)X和Y不能是相同的基团,(b)当X是--CO--且Y是--NH--时,基团--X--Y--附着在2-或5-位置,或其药学上可接受的盐被用作抗过敏药物。