申请人:Imperial Chemical Industries PLC
公开号:US04981856A1
公开(公告)日:1991-01-01
A quinazoline of the formula: ##STR1## wherein R.sup.1 is alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, halogeno, hydroxy or mercapto, or substituted alkyl or alkoxy; wherein R.sup.2 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 R.sup.3 is such that R.sup.3 --NH.sub.2 is an amino acid; wherein R.sup.4 is hydrogen or alkyl; wherein R.sup.5 is hydrogen or alkyl; and wherein each of R.sup.6, R.sup.7 and R.sup.8 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 R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 is other than hydrogen; or a pharmaceutically-acceptable salt or ester thereof. The compounds possess anti-tumour activity.
一种化学式为:##STR1##的喹唑啉,其中R.sup.1为烷基、环烷基、烯基、炔基、烷氧基、硫代烷基、芳基、芳氧基、芳基硫代烷基、芳基烷基、卤素、羟基或巯基,或取代的烷基或烷氧基;其中R.sup.2为氢、烷基、烯基或炔基,或取代的烷基或烷酰基;其中Ar为苯基、萘基或未取代或带有一个或多个取代基的杂环烃基;其中R.sup.3是使得R.sup.3 --NH.sub.2为氨基酸的基团;其中R.sup.4为氢或烷基;其中R.sup.5为氢或烷基;且其中R.sup.6、R.sup.7和R.sup.8中的每一个为氢、羟基、烷基、烷氧基、硫代烷基、烷基氨基、二烷基胺基、苯基、卤素、硝基、氰基或氨基,或取代的烷基、烷氧基或硫代烷基;前提是R.sup.4、R.sup.5、R.sup.6、R.sup.7和R.sup.8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。