Blurring the Boundary between Bio- and Geohopanoids: Plakohopanoid, a C32 Biohopanoid Ester from Plakortis cf. lita
作者:Valeria Costantino、Gerardo Della Sala、Alfonso Mangoni、Cristina Perinu、Roberta Teta
DOI:10.1002/ejoc.201200676
日期:2012.9
of hopanoid derivative composed of a C32 hopanoid acid ester linked to a mannosyl-myo-inositol, was isolated from the sponge Plakortis cf. lita as its peracetyl derivative 3b. The structure of 3b was determined by a combination of spectroscopic analysis and micro-scale chemical degradation. Even though plakohopanoid was isolated from a sponge, its component parts are clearly of bacterial origin, and
Plakohopanoid (3a) 是一种新型的hopanoid 衍生物,由连接到甘露糖肌醇的C32 hopanoid 酸酯组成,从海绵Plakortis cf. lita 作为其过乙酰基衍生物 3b。3b 的结构是通过光谱分析和微观化学降解的组合确定的。尽管 plakohopanoid 是从海绵中分离出来的,但它的组成部分显然是细菌来源的,它的细菌生物合成很可能。到目前为止,C32 hopanoic 酸一直被认为是 geohopanoids,即通过细菌中存在的 biohopanoids 的非生物降解形成的成岩产物。海洋生物中 3a 的存在表明存在 C32 hopanoic 酸的生物合成途径,