Patent ID: 8399667

Claim:
A quinazoline of Formula I: wherein: G 1 and G 2 each independently is halogeno; X 1 is O; R 1 is (1-4C)alkyl; X 2 is a direct bond; Q 1 is heterocyclyl, wherein Q 1 optionally bears 1 or 2 substituents, which may be the same or different, selected from carbamoyl, (1-6C)alkyl, (1-6C)alkylsulphonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, carbamoyl(1-6C)alkyl, N-(1-6C)alkylcarbamoyl(1-6C)alkyl, and N,N-di-[(1-6C)alkyl]carbamoyl(1-6C)alkyl, and wherein any (1-6C)alkyl and (2-6C)alkanoyl group within Q 1 optionally bears a substituent selected from (1-6C)alkoxy and NR a R b , wherein R a is hydrogen or (1-4C)alkyl and R b is hydrogen or (1-4C)alkyl, or R a and R b together with the nitrogen atom to which they are attached form a 5 or 6 membered ring, which optionally bears 1 or 2 substituents on an available ring carbon atom selected from (1-4C)alkyl; or a pharmaceutically acceptable salt thereof.