It has been found that stereospecific R(-)-4-demethoxy-7-deoxydaunomycinone can be synthesized from the known compound 4-demethoxy-7,9-dideoxydaunomycinone. R(-)-4-Demethoxy-7-deoxy-daunomycinone is an intermediate in the synthesis of (+)-4-demethoxydaunomycinone, the aglycone of the nonnaturally occurring and antitumor active (-)7(S)9(S)-4-demethoxydaunorubicin.
已经发现可以从已知化合物4-去甲氧基-7,9-双去氧异
柔红霉素酮合成立体特异性的R(-)-4-去甲氧基-7-去氧
柔红霉素酮。R(-)-4-去甲氧基-7-去氧
柔红霉素酮是合成(+)-4-去甲氧基
柔红霉素酮的中间体,后者是非自然存在且具有抗肿瘤活性的(-)7(S)9(S)-4-去甲氧基
柔红霉素的缺糖基。