| abstract |
ABSTRACT OF THE DISCLOSURE Disclosed is a novel anthracycline compound of the following formula (I): wherein Rl and R2 are each a hydroxyl group or a hydrogen atom and satisfy the condition that, when R2 is a hydroxyl group, Rl is a hydroxyl group or a hydrogen atom, whereas, when R2 is a hydrogen atom, Rl is a hydrogen atom, or an acid addition salt thereof. These compounds can be contained as active ingredients in antitumor agents, whereby good results are attainable. |