申请人:Fujirebio Inc.
公开号:US05324728A1
公开(公告)日:1994-06-28
A naphthoic acid derivative represented by the following general formula or a salt thereof: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a lower alkanoyloxy group, a hydroxy-lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkanoyloxy-lower alkyl group or an aralkyloxy group; R.sub.4 is a hydrogen atom or a lower alkyl group; R.sub.5 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaromatic group; X is a group ##STR2## a cycloalkylene group, a bivalent nitrogen-containing heterocyclic group, or a group ##STR3## --R.sub.8 --NH-- or --NH--R.sub.8, where R.sub.6 and R.sub.7 are each a hydrogen atom or a lower alkyl group and R.sub.8 is a cycloalkylene group, or R.sub.6 and R.sub.7, together with R.sub.4, may form an alkylene group of 1-3 carbon atoms; Y is --S(O).sub.p --, --(CH.sub.2).sub.n -- or --O--; Z is a substituted or unsubstituted alkylene group or a single bond; l is an integer of 0-4; m is an integer of 0-8; n is 0 or 1; p is an integer of 0-2; and g is 0 or 1. The compound is useful as an antiallergic agent.
一种萘甲酸衍生物或其盐,其通式如下:##STR1##其中,R.sub.1、R.sub.2和R.sub.3各自独立地为氢原子、卤素原子、羟基、低碳基、低烷氧基、低酰氧基、羟基-低碳基、低烷氧-低碳基、低酰氧-低碳基或芳基烷氧基;R.sub.4为氢原子或低碳基;R.sub.5为取代或未取代的芳基或取代或未取代的杂环芳基;X为基团##STR2##环烷基、含氮杂环的双价杂环基团或基团##STR3##--R.sub.8 --NH--或--NH--R.sub.8,其中R.sub.6和R.sub.7各自为氢原子或低碳基,R.sub.8为环烷基,或R.sub.6和R.sub.7与R.sub.4一起可以形成1-3碳原子的烷基;Y为--S(O).sub.p --、--(CH.sub.2).sub.n --或--O--;Z为取代或未取代的烷基或单键;l为0-4的整数;m为0-8的整数;n为0或1;p为0-2的整数;g为0或1。该化合物可用作抗过敏药物。