Hydrogenation of the anthracyclines daunorubicin (1) and doxorubicin (2) gave
selective deoxygenation at position 5. Hydride reduction of (1) and (2) gave
complementary regiocontrol, leading to 12-deoxygenation or 5,12-
bisdeoxygenation. This chemistry allows retention of the 7-glycoside and the
side-chain carbonyl groups. It has led to new anthracycline families
possessing all of the stereochemical and most of the spatial characteristics
of the parent compounds (1) and (2). These are typified by 5-deoxy (12), (15);
12-deoxy (22), (23); 5,12-bisdeoxy (34), (35); and 4,5,12-trisdeoxy systems
(36). All possess high anticancer activity.
蒽喜啉类化合物多柔比星(1)和阿霉素(2)的氢化反应在位置5上发生选择性脱氧作用。对(1)和(2)的氢化还原反应产生了互补的位置控制,导致12-脱氧或5,12-双脱氧。这种化学反应可保留7-糖苷和侧链酮基团。它已经导致新的蒽喜啉类家族,具有母体化合物(1)和(2)的所有立体化学特性和大部分空间特性。这些家族的代表包括5-去氧(12),(15);12-去氧(22),(23);5,12-双去氧(34),(35);以及4,5,12-三去氧系统(36)。所有这些都具有高抗癌活性。