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.
一种喹唑啉的化学式:##STR1##其中R.sup.1是烷基,环烷基,烯基,炔基,烷氧基,烷硫基,芳基,芳氧基,芳硫基,芳基烷基,卤素,羟基或巯基,或取代烷基或烷氧基;其中R.sup.2是氢,烷基,烯基或炔基,或取代烷基或烷酰基;其中Ar是苯基,萘基或杂环基,未取代或带有一个或多个取代基;其中R.sup.3是R.sup.3--NH.sub.2是氨基酸;其中R.sup.4是氢或烷基;其中R.sup.5是氢或烷基;其中R.sup.6,R.sup.7和R.sup.8中的每一个是氢,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,或取代烷基,烷氧基或烷硫基;前提是至少有一个R.sup.4,R.sup.5,R.sup.6,R.sup.7和R.sup.8不是氢;或其药学上可接受的盐或酯。该化合物具有抗肿瘤活性。