Phenolic Glycosides with Antioxidant Activity from the Stem Bark of Populus davidiana
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- 作者：XinFeng Zhang ; Phuong Thien Thuong ; Byung-Sun Min ; Tran Minh Ngoc ; Tran Manh Hung ; Ik Soo Lee ; MinKyun Na ; Yeon-Hee Seong ; Kyung-Sik Song ; KiHwan Bae
- 刊名：Journal of Natural Products
- 出版年：2006
- 出版时间：September 2006
- 年：2006
- 卷：69
- 期：9
- 页码：1370 - 1373
- 全文大小：58K
- 年卷期：v.69,no.9(September 2006)
- ISSN：1520-6025
文摘
Phytochemical study on the EtOAc-soluble fraction of the stem bark of Populus davidiana resulted in the isolation of10 phenolic glycosides (1-10), which were identified on the basis of physicochemical and spectroscopic analyses.Among these, three new compounds, populosides A-C (1-3), were determined to be 2-coumaroylmethyl-4-hydroxyphenyl-
-D-glucopyranoside, 2-coumaroylmethylphenyl--D-glucopyranoside, and 2-feruoylmethylphenyl--D-glucopyranoside, respectively. Compounds 1-10 were tested for their radical scavenging activity against an azo radical,ABTS
+. Of these, populosides A-C (1-3), populoside (4), grandidentatin (8), salireposide (9), and coumaroyl--D-glucoside (10) exhibited antioxidant activity in this assay.
-D-glucopyranoside, 2-coumaroylmethylphenyl--D-glucopyranoside, and 2-feruoylmethylphenyl--D-glucopyranoside, respectively. Compounds 1-10 were tested for their radical scavenging activity against an azo radical,ABTS+. Of these, populosides A-C (1-3), populoside (4), grandidentatin (8), salireposide (9), and coumaroyl--D-glucoside (10) exhibited antioxidant activity in this assay.