摘要:
Compounds of the formula ##STR1## in which R.sup.1 represents saturated, unsaturated or anhydro desoxypentosyl, desoxyhexosyl or didesoxyhexosyl, where the OH functions of the sugar are optionally protected, andR.sup.2 represents straight-chain or branched or heterosubstituted alkyl having up to ten carbon atoms andR.sup.3 represents straight-chain or branched or heterosubstituted alkyl having up to ten carbon atoms andX represents halogens andR.sup.4 represents straight-chain or branched or heterosubstituted alkyl having up to ten carbon atoms.Such compounds are useful as highly selective cytostatics in cancer therapy.