Compounds of the formula (I), in which R.sup.1a--R.sup.1e, R.sup.2a,
R.sup.2b, R.sup.3 and X have the meanings indicated in claim 1, are
inhibitors of tyrosine kinases, in particular TIE-2, and Raf kinases and
can be employed, inter alia, for the treatment of tumours. ##STR00001##