An NMR Study on Two Glucosylated Steroidal Saponins of Tb

Chinese Journal of Magnetic Resonance ›› 2012, Vol. 29 ›› Issue (1): 101-111.

An NMR Study on Two Glucosylated Steroidal Saponins of Tb

KANG Li-Ping^1,2, WANG Yong-Ze¹, FENG Bing¹, ZHOU Wen-Bin¹, XIONG Cheng-Qi¹, ZHAO Yang¹, TAN Da-Wei¹, LIU Chao¹, MA Bai-Ping^1*

1. Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China;
2. Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China

Received:2011-04-12 Revised:2011-04-20 Online:2012-03-05 Published:2012-03-05
Supported by:
国家自然科学基金资助项目（30973632），北京市自然科学基金重大资助项目（7090001）.

Abstract

Abstract:

Two glucosylated steroidal saponins of Tb were elucidated as pennogenin-3-O-α-D-glucopyranosyl-(1→3)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyranoside (1), and pennogenin-3-O-α-D-glucopyranosyl-(1→4)-α-D-glucopyranosyl-(1→3)-[α-L-rhamnopyranosyl-(1→2)]-β-D-glucopyrannoside (2) by MS, ¹H NMR, ¹³C NMR, COSY, HSQC and HMBC analysis. 1 and 2 are new compounds. The ¹³C and ¹H NMR chemical shifts of these two new compounds were assigned.

Key words: NMR, chemical shift, 2D NMR, saponin Tb, glucosylation

CLC Number:

O641

KANG Li-Ping, WANG Yong-Ze, FENG Bing, ZHOU Wen-Bin, XIONG Cheng-Qi, ZHAO Yang, TAN Da-Wei, LIU Chao, MA Bai-Ping. An NMR Study on Two Glucosylated Steroidal Saponins of Tb[J]. Chinese Journal of Magnetic Resonance, 2012, 29(1): 101-111.

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