Five unusual hexose derivatives were isolated from the carbohydrate portion of the solid-state fermentation extract of Actinosynnema pretiosum ssp. auranticum ATCC 31565, which is a producing strain of maytansinoids that are a family of 19-membered macrocyclic lactams having extraordinary cytotoxic and antineoplastic activities. Their structures were determined to be 2-deoxy-α-D-arabino-hexopyranose (1), 2-deoxy-β-D-arabino-hexopyranose (2), 3,6-anhydro-2-deoxy-α-D-arabino-hexcofuranose (3), 3,6-anhydro-2-deoxy-β-D-arabino-hexofuranose (4), and 2-(D-glycerol-1,2-dihydroxyethyl)furan (5) by NMR spectroscopic experiments.
从 Actinosynnema pretiosum ssp 固态发酵
提取物的
碳水化合物部分中分离出五种不寻常的己糖衍
生物。 auranticum A
TCC 31565,是一种美登木素
生物碱生产菌株,美登木素
生物碱是 19 元大环内酰胺家族,具有非凡的细胞毒性和抗肿瘤活性。它们的结构被确定为2-脱氧-α-D-阿拉伯-
吡喃己糖(1)、2-脱氧-β-D-阿拉伯-
吡喃己糖(2)、3,6-脱
水-2-脱氧-α-D-通过 NMR 光谱实验分析阿拉伯
呋喃己糖 (3)、3,6-脱
水-2-脱氧-β-D-阿拉伯
呋喃己糖 (4) 和 2-(D-
甘油-1,2-二羟乙基)
呋喃 (5) 。