Alloaromandendranes, bicyclogermacrane and 2,3-secoalloaromandendranes in cultured cells of the liverwort, Heteroscyphus planus
作者:Kensuke Nabeta、Shinchi Ohkubo、Reiko Hozumi、Yukiharu Fukushi、Hiroshi Nakai、Kenji Katoh
DOI:10.1016/0031-9422(96)00257-9
日期:1996.9
-alloaromandendranes, planotriol and its acetates, and four ent --2,3-secoalloaromandendranes including two novel compounds in nature and one novel ent -bicyclogermacrene were isolated from cultured cells of the liverwort, Heteroscyphus planus . The absolute configuration of planotriol and its acetates were determined by a single X-ray analysis and 1 H NMR spectroscopy after derivatization with an axially chiral
摘要 从地草Heteroscyphus planus 的培养细胞中分离出新型ent-alloaromandendranes、planotriol 及其醋酸盐和四种ent-2,3-secoallomandendranes,包括两种自然界中的新化合物和一种新型ent-bicyclogermacrene。用轴向手性试剂 2-(2'-method-1'-naphthyl)-3,5-dichlorobenzoic acid 衍生后,通过单次 X 射线分析和 1 H NMR 光谱确定了平三醇及其乙酸酯的绝对构型(MNCB)。Planotriol diacetate 被化学转化为已知的 ent -2,3-secoalloaromandendrane, (-)-hanegokedial,这表明 2,3-dihydroxy-alloaromandranes 可能是 2,3-secoalloaromandendranes