| abstract |
The present invention relates to quinazoline derivatives of general formula (I), wherein R a, R b and R c are defined as claim 1, their tautomers, their stereoisomers and their salts, in particular physiologically tolerable salts with inorganic iliorganic acids, having valuable pharmacological properties, especially the inhibitory effect on tyrosine kinase signal transduction, their use for the treatment of diseases, especially tumor diseases, lung and respiratory diseases, and their preparation. |