The invention relates to indoline derivatives substituted in position 6 of general formula (I) wherein R1 - R6 and X are defined in Claim 1, the tautomers, enantiomers thereof, the mixtures and salts thereof, especially physiologically compatible salts which have valuable pharamaceutical properties, especially an inhibiting effect on various receptor tyrosine kinases and on the proliferation of enthethelial cells and various tumor cells, medicaments containing said compounds, the use thereof and a method for the production thereof.
