Quinazoline derivatives, processes for their preparation and pharmaceutical compositions containing them
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0030156A1
公开(公告)日:1981-06-10
The quinazoline derivatives have the formula:
wherein R1a and R'b are esterified carboxy, R2 and R3 are hydrogen, alkyl, halogen, nitro, amino, alkoxy, aryloxy, alkylthio, alkylpiperazinyl, acylamino or dialkylamino which may be substituted with hydroxy,
A'is a group of the formula:
in which R4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy, dialkylamino or 2,2-dialkoxycarbonylvinylamino, and R' is alkyl or alkenyl; or the formula:
wherein R' is hydrogen, carboxy or esterified carboxy,
A2 is a group of the formula:
in which R4a is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy or dialkylamino, R' is carboxy or esterified carboxy R2, R3 and
R5 are each as defined above. The quinazoline derivatives are useful as antiallergy agents.
喹唑啉衍生物的结构式如下
其中 R1a 和 R'b 为酯化羧基,R2 和 R3 为氢、烷基、卤素、硝基、氨基、烷氧基、芳氧基、烷硫基、烷基哌嗪基、酰氨基或可被羟基取代的二烷基氨基、
A'is a group of the formula:
其中 R4 是氢、烷基、羟基、烷氧基、烯氧基、二烷基氨基或 2,2-二烷氧基羰基乙烯基氨基,R' 是烷基或烯基;或式中
其中 R' 是氢、羧基或酯化羧基、
A2 是式中的基团:
其中 R4a 是氢、烷基、羟基、烷氧基、烯氧基或二烷基氨基,R' 是羧基或酯化羧基。
R5 均如上定义。喹唑啉衍生物可用作抗过敏剂。