申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04543356A1
公开(公告)日:1985-09-24
This invention is directed to new quinazoline derivatives of the following formula having use in the treatment of symptoms associated with allergic manifestations. ##STR1## wherein R.sub.a.sup.1 and R.sub.b.sup.1 are C.sub.2 -C.sub.7 alkoxycarbonyl or R.sub.a.sup.1 and R.sub.b.sup.1 is linked together to form a group of the formula: ##STR2## R.sup.2 and R.sup.3 are hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, nitro, amino, C.sub.1 -C.sub.6 alkoxy, phenoxy, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylpiperazinyl, C.sub.1 -C.sub.18 alkanoylamino, di(C.sub.1 -C.sub.6)alkanoylamino, C.sub.3 -C.sub.9 alkoxalylamino, C.sub.4 -C.sub.8 cycloalkylcarbonylamino, C.sub.3 -C.sub.7 cycloalkyl(C.sub.1 -C.sub.6)alkanoylamino, benzamido, phenyl(C.sub.1 -C.sub.6)alkanoylamino, C.sub.1 -C.sub.6 alkylsulfonylamino or di(C.sub.1 -C.sub.6)alkylamino which may be substituted with hydroxy, A.sup.1 is a group of the formula: ##STR3## in which R.sup.4 is hydrogen C.sub.1 -C.sub.6 alkyl, hydroxy, C.sub.1 -C.sub.6 alkoxy, C.sub.2 -C.sub.6 alkenyloxy, di(C.sub.1 -C.sub.6)alkylamino or 2,2-di(C.sub.1 -C.sub.6)alkoxycarbonylvinylamino, and R.sup.5 is C.sub.1 -C.sub.6 alkyl or C.sub.2 -C.sub.6 alkenyl, or pharmaceutically acceptable salt thereof.
本发明涉及以下公式的新喹唑啉衍生物,其在治疗与过敏反应相关的症状中有用:
其中,R.sub.a.sup.1和R.sub.b.sup.1为C.sub.2-C.sub.7烷氧羰基或R.sub.a.sup.1和R.sub.b.sup.1连接在一起形成以下公式的基团:
R.sup.2和R.sup.3为氢、C.sub.1-C.sub.6烷基、卤素、硝基、氨基、C.sub.1-C.sub.6烷氧基、苯氧基、C.sub.1-C.sub.6烷基硫醚基、C.sub.1-C.sub.6烷基哌嗪基、C.sub.1-C.sub.18脂肪酰氨基、二(C.sub.1-C.sub.6)脂肪酰氨基、C.sub.3-C.sub.9烷氧羰酰基氨基、C.sub.4-C.sub.8环烷基羧酰氨基、C.sub.3-C.sub.7环烷基(C.sub.1-C.sub.6)烷基酰氨基、苯甲酰氨基、苯基(C.sub.1-C.sub.6)烷基酰氨基、C.sub.1-C.sub.6烷基磺酰氨基或二(C.sub.1-C.sub.6)烷基氨基,可被羟基取代,A.sup.1为以下公式的基团:
其中,R.sup.4为氢、C.sub.1-C.sub.6烷基、羟基、C.sub.1-C.sub.6烷氧基、C.sub.2-C.sub.6烯基氧基、二(C.sub.1-C.sub.6)烷基氨基或2,2-二(C.sub.1-C.sub.6)烷氧羰基乙烯基氨基,R.sup.5为C.sub.1-C.sub.6烷基或C.sub.2-C.sub.6烯基,或其药学上可接受的盐。