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Last Updated: December 12, 2025

Claims for Patent: 5,770,599

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Summary for Patent: 5,770,599

Title:	Quinazoline derivatives
Abstract:	The invention concerns quinazoline derivatives of the formula I ##STR1## wherein n is 1, 2 or 3 and each R2 is independently halogeno, trifluoromethyl or (1-4C)alkyl; R3 is (1-4C)alkoxy; and R1 is di- (1-4C)alkyl!amino-(2-4C)alkoxy, pyrrolidin-1-yl-(2-4C)alkoxy, piperidino-(2-4C)alkoxy, morpholino-(2-4C)alkoxy, piperazin-1-yl-(2-4C)alkoxy, 4-(1-4C)alkylpiperazin-1-yl-(2-4C)alkoxy, imidazol-1-yl-(2-4C)alkoxy, di- (1-4C)alkoxy-(2-4C)alkyl!amino-(2-4C)alkoxy, thiamorpholino-(2-4C)alkoxy, 1-oxothiamorpholino-(2-4C)alkoxy or 1,1-dioxothiamorpholino-(2-4C)alkoxy, and wherein any of the above-mentioned R1 substituents comprising a CH2 (methylene) group which is not attached to a N or O atom optionally bears on said CH2 group a hydroxy substituent; 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.
Inventor(s):	Kieth Hopkinson Gibson
Assignee:	AstraZeneca UK Ltd, Syngenta Ltd
Application Number:	US08/638,331
Patent Claims:

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