A new metabolic product of Oospora astringenes, oospolide, was isolated by ionexchange chromatography of the culture medium, and the structure was determined as the formula (I). The biosynthesis of oospolide was also studied by using 14C-acetates, and head-to-tail condensation of acetate units was presumed as the biosynthetic mechanism.
奥斯波根节卵孢菌(Oospora astringenes)的一种新的代谢产物奥斯波酯(oospolide)通过
培养基的离子交换色谱法分离出来,其结构确定为公式(I)。利用14C-
乙酸盐进行了奥斯波酯的
生物合成研究,并推测其
生物合成机制为
乙酸盐单元头尾缩合。