The invention relates to quinazoline derivatives or pharceutically-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 (1-4C)alkyl; the quinazoline ring may optionally bear one or two further substituents selected from halogeno, (1-4C)alkyl and (1-4C)alkoxy; R.sup.2 is hydrogen or (1-4C)alkyl; R.sup.3 includes hydrogen and (1-4C)alkyl; and Ar is optionally substituted phenylene or heterocyclene; or a pharmaceutically-acceptable salt or ester thereof.
本发明涉及
喹唑啉衍
生物或其药学上可接受的盐,具有抗肿瘤活性;以及制造它们的过程和含有它们的制药组合物。该发明提供了
化学式为:##STR1##其中R.sup.1是(1-4C)烷基;
喹唑啉环可以选择性地带有一或两个进一步的取代基,所选自卤素,(1-4C)烷基和(1-4C)烷氧基;R.sup.2是氢或(1-4C)烷基;R.sup.3包括氢和(1-4C)烷基;Ar是可选择性取代的苯基或杂环基;或其药学上可接受的盐或酯。