Isolation and synthesis of tanyolides A and B, metabolites of the nudibranch Sclerodoris tanya.
作者:Patrick J. Krug、Kenneth G. Boyd、D. John Faulkner
DOI:10.1016/0040-4020(95)00679-3
日期:1995.10
The nudibranch Sclerodoris tanya, which was collected intertidally at La Jolla, contains two sesquiterpene glyceride esters, tanyolides A (4) and B (5). The structures of the tanyolides were elucidated by interpretation of spectral data. The absolute configuration of tanyolide B (5) was determined by synthesis of both enantiomers and the structure of tanyolide A (4) was also confirmed by synthesis. The
在拉霍亚(La Jolla)处收集收集的裸露的Sclerodoris tanya包含两种倍半萜甘油酯,单宁类内酯A(4)和B(5)。通过分析光谱数据阐明了单宁类化合物的结构。通过两种对映异构体的合成确定了tanyolide B(5)的绝对构型,并且通过合成也确认了tanyolide A(4)的结构。单宁类化合物主要位于背地幔中,阻止了两种与生态相关的掠食性鱼类的摄食。