A new phenylpropanoid and a new isoflavone glycoside from Shenqi Fuzheng Injection

Abstract

A new phenylpropanoid and a new isoflavone glycoside were isolated from Shenqi Fuzheng Injection. Their structures were elucidated as (αS)-α-ethenyl-4-hydroxy-3-methoxy-benzenemethanol (1) and calycosin 7-O-[α-d-glucopyranosyl (1 → 4)]-β-d-glucopyranoside (2) by means of spectroscopic methods including UV, IR, HR-ESI-MS, and NMR. The absolute configurations of 1 and 2 were confirmed by quantum chemical calculation and acid hydrolysis.

Keywords::

• Shenqi Fuzheng Injection
• isoflavone glycoside
• phenylpropanoid

Acknowledgments

Financial support of this research was provided by Program for National Natural Science Foundation of China (No. 81273391), the Ministry of Science and Technology of China (Nos 2013DFM30080, 2013BAI11B05, 2012ZX09103201-056), and the Program of Pearl River Young Talents of Science and Technology in Guangzhou, China (2013J2200058).

Notes

^1. These authors contributed equally to this work.