从纤维堆囊菌菌株So0157-2发酵吸附树脂的提取物中分离得到四个天然埃博霉素衍生物,包括两个14元环埃博霉素L(1)和L1(2),以及两个环氧环打开的埃博霉素A(3)和B(4)。并根据核磁共振和质谱等方法鉴定了它们的结构。这四个化合物都是首次作为天然产物从该菌株中分离得到,也是首次对化合物的数据进行全指定。
Four natural epothilone analogues, including two 14-membered epothilones L (1), L1 (2) and two epoxide opened epothilones A (3) and B (4), were isolated from the extract of fermentation adsorber resin of Sorangium cellulosum strain So0157-2. Their structures were elucidated on the basis of comprehensive NMR and MS data. They are all isolated from the wild type S. cellulosum strain So0157-2 as natural products for the first time.