A new naturally acetylated triterpene saponin from Nigella sativa

作者：Mehta Bhupendra Kumar^*; Mehta Prabha; Gupta Meenal

来源：Carbohydrate Research, 2009, 344(1): 149-151.

DOI：10.1016/j.carres.2008.10.004

• Nigella sativa
• Seeds
• Ranunculaceae
• Ethanol extract
• Naturally acetylated saponin

A new glycosylated triterpene 1 was identified as 3-O-[beta-D-xylopyranosyl-(1 -> 3)-alpha-L-rhamnopyranosyl-(1 -> 4)-beta-D-glucopyranosyl]-11-methoxy-16-hydroxy-17-acetoxy hederagenin from an ethanolic extract of seeds of Nigella sativa Linn. Identification of the naturally acetylated saponin was based on chemical and spectroscopic analyses including FABMS, (1)H, (13)C, and 2D NMR and DEPT. The saponin was a penta hydroxy pentacyclic triterpene, in which one hydroxyl group was acetylated and other one was methylated naturally.

• 出版日期2009-1-5