There is disclosed compounds of the formula ##STR1## wherein R.sup.1 represents a methyl or acetonyl group and R.sup.2 represents a hydrogen atom, a hydroxyl group or a group of the formula ##STR2## and a process for the preparation thereof. The compounds are useful as intermediates for the preparation of anthracycline antibiotics and certain of the compounds exhibit per se activity as antibacterial and antitumor agents.
公开了公式为 ##STR1## 的化合物,其中R.sup.1代表甲基或乙酰基基团,R.sup.2代表氢原子,羟基或公式 ##STR2## 的基团。还公开了一种制备这些化合物的方法。这些化合物可用作
蒽环类抗生素的中间体,其中某些化合物本身具有抗菌和抗肿瘤活性。