Patent ID: 7173038

Claim:
A quinazoline derivative of the formula I: wherein: m is an integer from 1 to 3; R 1 represents halogeno or C 1-3 alkyl; X 1 represents â€”Oâ€”; R 2 is selected from one of the following three groups: 1) C 1-5 alkylR 3 , wherein R 3 is piperidin-4-yl which may bear one or two substituents selected from hydroxy, halogeno, C 1-4 alkyl, C 1-4 hydroxyalkyl and C 1-4 alkoxy; 2) C 2-5 alkenylR 3 , wherein R 3 is as defined herein; 3) C 2-5 alkynylR 3 , wherein R 3 is as defined herein; and wherein any alkyl, alkenyl or alkynyl group may bear one or more substituents selected from hydroxy, halogeno and amino; or a salt thereof.