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Seventeen steroids from the pith of Tetrapanax papyriferus

Author:
Xu, Jing-Lan, Gu, Li-Hua, Wang, Zheng-tao, Bligh, Annie, Han, Zhu-Zhen, Liu, Shou-Jin
Source:
Journal of Asian natural products research 2016 v.18 no.12 pp. 1131-1137
ISSN:
1477-2213
Subject:
ketones, nuclear magnetic resonance spectroscopy, pith, steroid saponins, steroids
Abstract:
Two new steroidal ketones (1 , 2), together with 10 known steroids (3–12) and five known steroidal saponins (13–17), have been obtained from the pitch of Tetrapanax papyrierus . The structures of 1 and 2 were elucidated as 3β-hydroxystigmast-8, 22-diene-7,11-dione and 3β-hydroxystigmast-8-ene-7,11-dione by IR, HR-ESI-MS, 1D and 2D NMR techniques. Except for 4 , 14 , 15 , 16 , 13 compounds reported in this paper were isolated from Tetrapanax papyriferus for the first time.
Agid:
5560771