Antitumor glycosides, process for their preparation including intermediates therefor and their use

摘要

Disclosed is a new class of antitumor glycoside antibiotics of the formula (IA): (IA) wherein R is hydrogen or hydroxy; and X is These compounds are prepared, using novel intermediates, by condensing the appropriate aglycone and amino-deoxy sugar to form the alpha -glycosidic linkage.