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Structural determination of two new steroidal saponins from Smilax china
Hui-Lian Huang1, Rong-Hua Liu, Feng Shao
1Key Laboratory of Modern Preparation of TCM, Jiangxi University of Traditional Chinese Medicine, Ministry of Education, Nanchang 330004, People's Republic of China. huilianh@163.com
Abstract:
Two new steroidal saponins (1 and 2) were isolated from the BuOH fraction of the 70% EtOH extract of the tubes of Smilax china, together with four known analogues, 3-6. The structures of the new compounds were elucidated by means of chemical evidence and spectroscopic analyses, including HR-MS, IR, (1)H- and (13)C-NMR, and 2D experiments ((1)H-(1)H COSY, HSQC and HMBC).