申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0284338A2
公开(公告)日:1988-09-28
A quinazoline of the formula:-
wherein R1 is alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, halogeno, hydroxy or mercapto, or substituted alkyl or alkoxy;
wherein R2 is hydrogen, alkyl, alkenyl or alkynyl, or substituted alkyl or alkanoyl;
wherein Ar is phenylene, naphthylene or heterocyclene which is unsubstituted or bears one or more substituents;
wherein R3 is such that R3-NH2 is an amino acid;
wherein R4 is hydrogen or alkyl;
wherein R5 is hydrogen or alkyl; and
wherein each of R6, R7 and R8 is hydrogen, hydroxy, alkyl, alkoxy, alkylthio, alkylamino, dialkylamino, phenyl, halogeno, nitro, cyano or amino, or substituted alkyl, alkoxy or alkylthio;
provided that at least one of R4, R5, R6, R7 and R8 is other than hydrogen;
or a pharmaceutically-acceptable salt or ester thereof. The compounds possess anti-tumour activity.
式中的一种喹唑啉:-
其中 R1 是烷基、环烷基、烯基、炔基、烷氧基、烷硫基、芳基、芳氧基、芳硫基、芳烷基、卤素、羟基或巯基,或取代的烷基或烷氧基;
其中 R2 是氢、烷基、烯基或炔基,或取代的烷基或烷酰基;
其中 Ar 是未被取代或带有一个或多个取代基的亚苯基、萘基或杂环;
其中 R3 是 R3-NH2 是氨基酸;
其中 R4 是氢或烷基
其中 R5 是氢或烷基;以及
其中 R6、R7 和 R8 各为氢、羟基、烷基、烷氧基、烷硫基、烷基氨基、二烷基氨基、苯基、卤素、硝基、氰基或氨基,或取代的烷基、烷氧基或烷硫基;
条件是 R4、R5、R6、R7 和 R8 中至少有一个不是氢;
或其药学上可接受的盐或酯。这些化合物具有抗肿瘤活性。