| abstract |
The present invention relates to bicyclic heterocycles of the general formula (See formula) in which Ra, a Rd, A to C and X are defined as in claims 1 to 5, to their tautomers, their stereoisomers and their salts, in in particular its physiologically compatible salts with inorganic or organic acids or bases, which have valuable pharmacological properties, in particular an inhibitory effect on the transduction of signals induced by tyrosine kinases, for use in the treatment of diseases, in particular tumor diseases, of diseases of the lungs and respiratory tract, and their preparation. |