Abstract
The structures of two flavanonol glycosides isolated from Smilax glabra, named smitilbin and neosmitilbin, have been revised to isoastilbin and neoastilbin,
respectively. The revised structures were determined based on intensive studies of
chemical interconversion, NMR spectroscopy, and X-ray crystallographic analysis. The
latest NMR data were also summarized.
Key words
Smilax glabra (Liliaceae) - flavanonol glycoside - smitilbin - neosmitilbin - isoastilbin - neoastilbin
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Ting Chen
State Key Laboratory of Pharmaceutical Biotechnology
School of Life Sciences
Nanjing University
22 Hankou Road
Nanjing 210093
People's Republic of China
Phone: + 86 25 83 68 67 86
Fax: + 86 25 83 59 76 20
Email: chenting.nju@163.com
Jian-Xin Li
School of Chemistry and Chemical Engineering
Nanjing University
22 Hankou Road
Nanjing 210093
People's Republic of China
Phone: + 86 25 83 68 64 19
Fax: + 86 25 83 68 64 19
Email: lijxnju@nju.edu.cn
