Hispidospermidin, a novel phospholipase C inhibitor produced by Chaetosphaeronema hispidulum (Cda) Moesz NR 7127. II. Isolation, characterization and structural elucidation.
作者:TATSUO OHTSUKA、YOSHIKO ITEZONO、NOBORU NAKAYAMA、AKIKO SAKAI、NOBUO SHIMMA、KAZUTERU YOKOSE、HARUO SETO
DOI:10.7164/antibiotics.47.6
日期:——
Hispidospermidin (1) is a novel phospholipase C inhibitor produced by Chaetosphaeronema hispidulum (Cda) Moesz NR 7127. Its structure (C25H47N3O) has been elucidated as a cage compound with a trimethylspermidine side chain based on various NMR studies, including 1H-1H COSY, 13C-1H COSY, HOHAHA, HMBC, COLOC and long range J C-H resolved 2D spectroscopy. The absolute configuration of 1 has been elucidated by modified Mosher's method on the (R)-and (S)-MTPA amides of a derivative of 1.
Hispidospermidin(1)是由Chaetosphaeronema hispidulum(Cda)Moesz NR 7127产生的一种新型磷脂酶C抑制剂。基于多种NMR研究,包括1H-1H COSY、13C-1H COSY、HOHAHA、HMBC、COLOC以及长程J C-H分辨的2D光谱,其结构(C25H47N3O)已被阐明为一种具有三甲基精氨酸侧链的笼状化合物。通过修改过的Mosher方法,对1的衍生物的(R)和(S)-MTPA酰胺进行了绝对构型的阐明。