| abstract |
The invention concerns quinazoline derivatives of formula (I) wherein R1 includes hydroxy, amino, hydroxyamino, (1-4C)alkoxy, (1-4C)alkylamino and di-[(1-4C)alkyl]amino; R3 is halogeno; n is 1, 2 or 3 and R2 includes hydrogen, hydroxy, halogeno and (1-4C)alkyl; or a pharmaceutically-acceptable salt 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 cancer. |