The invention concerns quinazoline derivatives of formula wherein n is 1, 2 or 3 and each R.sup.2 is independently halogeno; and R.sup.1 is 1-4C)alkoxy-(2-4C)alkylamino; or pharmaceutically-acceptable salts thereof; processes for their preparation, pharmaceutical compositions containing them, and the use of the receptor tyrosine kinase inhibitory properties of the compounds in the treatment of proliferative disease such as cancer.
该发明涉及公式中的
喹唑啉衍
生物,其中n为1、2或3,每个R.sup.2独立地为卤素;R.sup.1为1-4C)烷氧基-(2-4C)烷基
氨基;或其药学上可接受的盐;制备它们的过程,包含它们的制药组合物,并利用这些化合物的受体
酪氨酸激酶抑制性质治疗增殖性疾病,如癌症。