申请人:Yoshitomi Pharmaceutical Industries, Ltd.
公开号:US04085111A1
公开(公告)日:1978-04-18
1H-Tetrazole derivatives of the formula: ##STR1## and pharmaceutically acceptable salts thereof, wherein the ring P is pyridine ring; A is carbonyl, methylene or C.sub.2-4 alkylidene; Y is oxygen, sulfur or --N(R.sup.1)-- wherein R.sup.1 is hydrogen or C.sub.1-4 alkyl; each of X.sup.1 and X.sup.2 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl or substituted phenyl, any substitutent on the phenyl being halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or trifluoromethy; and R is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, hydroxy-C.sub.1-4 alkyl, C.sub.1-4 alkoxy-C.sub.1-4 alkyl, carboxy-C.sub.1-4 alkyl, C.sub.1-4 alkoxycarbonyl-C.sub.1-4 alkyl or substituted or unsubstituted amino-C.sub.1-4 alkyl, any substituted amino being C.sub.1-4 alkyl- or di-C.sub.1-4 alkyl-amino, piperidino, 1-pyrrolidinyl, morpholino, 1-piperazinyl and 4-C.sub.1-4 alkyl-1-piperazinyl; are useful as antiallergic agents.
公式:##STR1## 其中环P是吡啶环;A是羰基,亚甲基或C.sub.2-4烷基亚甲基;Y是氧,硫或--N(R.sup.1)--,其中R.sup.1是氢或C.sub.1-4烷基;X.sup.1和X.sup.2中的每一个是氢,卤素,C.sub.1-4烷基,C.sub.1-4烷氧基,苯基或取代苯基,苯基上的任何取代基是卤素,C.sub.1-4烷基,C.sub.1-4烷氧基或三氟甲基;R是氢,C.sub.1-4烷基,C.sub.2-4烯基,C.sub.2-4炔基,羟基-C.sub.1-4烷基,C.sub.1-4烷氧基-C.sub.1-4烷基,羧基-C.sub.1-4烷基,C.sub.1-4烷氧羰基-C.sub.1-4烷基或取代或未取代的氨基-C.sub.1-4烷基,任何取代的氨基是C.sub.1-4烷基或二C.sub.1-4烷基氨基,哌啶基,1-吡咯烷基,吗啉基,1-哌嗪基和4-C.sub.1-4烷基-1-哌嗪基;这些化合物及其药学上可接受的盐是抗过敏药物。