Two new anthracycline antibiotics, 10-epi-oxaunomycin and 10-epi-11-deoxyoxaunomycin, were photochemically obtained from anthracycline metabolites D788-1 (10-carboxy-13-deoxocarminomycin) and D788-3 (10-carboxy-ll-deoxy-13-deoxocarminomycin) and were examined for their growth inhibitory activities on cultured LI210 leukemic cells. Effects of the S configuration of C-10 and a hydroxyl group at C-11 on the bioactivity are discussed in comparison with oxaunomycin and 11-deoxyoxaunomycin.
从
蒽环类代谢物 D788-1(10-羧基-13-脱氧大环
内酯霉素)和 D788-3(10-羧基-ll-脱氧-13-脱氧大环
内酯霉素)光
化学方法获得了两种新的
蒽环类抗生素--10-表-氧杂霉素和 10-表-11-脱氧氧杂霉素,并考察了它们对培养的 LI210 白血病细胞的生长抑制活性。通过与奥沙霉素和 11-脱氧奥沙霉素进行比较,讨论了 C-10 的 S 构型和 C-11 的羟基对
生物活性的影响。