The invention concerns quinazoline derivatives of the formula I ##STR1## wherein X.sup.1 is a direct link or a group such as CO, C(R.sup.2).sub.2 and CH(OR.sup.2); wherein Q.sup.1 is phenyl, naphthyl or a 5- or 6-membered heteroaryl moiety and Q.sup.1 optionally bears up to 3 substituents; wherein m is 1 or 2 and each R.sup.1 may be a group such as hydrogen, halogeno and trifluoromethyl; and wherein Q.sup.2 may be phenyl or a 9- or 10-membered bicyclic heterocyclic moiety and Q.sup.2 optionally bears up to 3 substituents; or a pharmaceutically-acceptable salt thereof; processes for their preparation, pharmaceutical compositions containing them and the use of their receptor tyrosine kinase inhibitory properties in the treatment of proliferative disease such as cancer.
The invention concerns quinazoline compounds of the formula I ##STR1## wherein Q.sup.1 is a 5- or 6-membered heteroaryl moiety and Q.sup.1 optionally bears up to 3 substituents; wherein m is 1 or 2 and each R.sup.1 may be a group such as hydrogen, halogeno and trifluoromethyl; and wherein Q.sup.2 is phenyl which optionally bears up to 3 substituents; or a pharmaceutically-acceptable salt thereof; processes for their preparation, pharmaceutical compositions containing them and the use of their receptor tyrosine kinase inhibitory properties in the treatment of proliferative disease such as cancer.