Psammaplysin Derivatives from the Balinese Marine Sponge<i>Aplysinella strongylata</i>
作者:I Wayan Mudianta、Tina Skinner-Adams、Katherine T. Andrews、Rohan A. Davis、Tri A. Hadi、Patricia Y. Hayes、Mary J. Garson
DOI:10.1021/np300560b
日期:2012.12.28
Twenty-one new psammaplysin derivatives (4–24) exhibiting a variety of side chains, as well as six previously known psammaplysins, were identified from the Indonesian marine sponge Aplysinella strongylata. The double bond on the side chain of the fatty acid-containing psammaplysins was located by GC-MS analysis of the fatty acid methyl esters and their pyrrolidide derivatives. HPLC and Mosher ester
二十一新psammaplysin衍生物(4 - 24)表现出多种侧链,以及6个先前已知的psammaplysins,从印度尼西亚海绵识别Aplysinella strongylata。通过GC-MS分析脂肪酸甲酯和它们的吡咯化物衍生物,定位了含脂肪酸的角蛋白水解酶的侧链上的双键。HPLC和Mosher酯研究证实,具有19-OH取代基的分离代谢物是非对映异构体的混合物。选择的化合物(4,5,7,8,12,18,和22筛选了针对氯喹敏感(3D7)恶性疟原虫疟原虫的体外活性。在新的psammaplysins中,19-hydroxypsammaplysin E(4)显示出最佳的抗疟活性,IC 50值为6.4μM。