Bienvenu Tsakem, Billy Tchegnitegni Toussie, Xavier Siwe-Noundou, Beaudelaire Kemvoufo Ponou, Rémy Bertrand Teponno, Syed Ghulam Musharraf, Leon Azefack Tapondjou
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引用次数: 0
Abstract
From the n-butanol soluble fraction of the ethanol extract of the medicinal plant Olax subscorpioidea, a previously unreported rotameric biflavonoid glycoside constituted of 4′-O-methylgallocatechin-(4α → 8)-4′-O-methylgallocatechin as aglycone named olasubscorpioside C (1) along with the known 4′-O-methylgallocatechin (2) were isolated. Their structures were determined on the basis of spectrometric and spectroscopic techniques including HRFABMS, 1H and 13C NMR, DEPT 135o, HSQC, HMBC, ROESY, and CD followed by comparison with the reported data.
从药用植物山茱萸(Olax subscorpioidea)乙醇提取物的正丁醇可溶部分中，分离到一种先前未报道的由4′- o -甲基没食子儿茶素-(4α→8)-4′- o -甲基没食子儿茶素作为苷元组成的旋美双黄酮苷，命名为olassubscorpioside C(1)和已知的4′- o -甲基没食子儿茶素(2)。通过HRFABMS、1H和13C NMR、DEPT 1350、HSQC、HMBC、ROESY和CD等光谱技术确定其结构，并与报道的数据进行比较。
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