The invention relates to quinazoline derivatives, or pharmaceutically-acceptable salts thereof, which possess anti-tumor activity; to processes for their manufacture; and to pharmaceutical compositions containing them. The invention provides a quinazoline of the formula: ##STR1## wherein R.sup.1 is hydrogen or amino, or alkyl or alkoxy each of up to 6 carbon atoms; or R.sup.1 is substituted alkyl or alkoxy each of up to 3 carbon atoms; R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, hydroxyalkyl, halogenoalkyl or cyanoalkyl each of up to 6 carbon atoms; Ar is phenylene or heterocyclene; L is a group of the formula --CO.NH--, --NH.CO--, --CO.NR.sup.3 --, --NR.sup.3. CO--, --CH.dbd.CH--, --CH.sub.2 O--, --OCH.sub.2, --CH.sub.2 S--, --SCH.sub.2 --, --CO.CH.sub.2 --, --CH.sub.2.CO-- or --CO.O--, wherein R.sup.3 is alkyl of up to 6 carbon atoms; and Y is aryl or heteroaryl or a hydrogenated derivative thereof: or Y is a group of the formula --A--Y.sup.1 in which A is alkylene, cycloalkylene, alkenylene or alkynylene each of up to 6 carbon atoms and Y.sup.1 is aryl or heteroaryl or a hydrogenated derivative thereof; or a pharmaceutically-acceptable salt thereof.
本发明涉及具有抗肿瘤活性的喹嗪衍
生物或其药学上可接受的盐,以及制造它们的过程和包含它们的制药组合物。本发明提供了一种喹嗪式化合物:##STR1## 其中R.sup.1是氢或
氨基,或者是碳数不超过6的烷基或烷氧基,或者是取代的碳数不超过3的烷基或烷氧基;R.sup.2是氢、烷基、烯基、炔基、羟基烷基、卤代烷基或
氰基烷基,每种碳数不超过6;Ar是苯基或杂环基;L是公式--CO.NH--,--NH.CO--,--CO.NR.sup.3--,--NR.sup.3.CO--,--CH.dbd.CH--,--CH.sub.2O--,--OCH.sub.2--,--CH.sub.2S--,--SCH.sub.2--,--CO.CH.sub.2--,--CH.sub.2.CO--或--CO.O--的基团,其中R.sup.3是碳数不超过6的烷基;Y是芳基或杂芳基或其氢化衍
生物,或者是公式--A--Y.sup.1的基团,其中A是碳数不超过6的烷基、环烷基、烯基或炔基,Y.sup.1是芳基或杂芳基或其氢化衍
生物;或其药学上可接受的盐。