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Seven New Lignan Esters from Kadsura philippinensis

✍ Scribed by Yuan-Bin Cheng; Yu-Chi Lin; Ashraf Taha Khalil; Shorong-Shii Liou; Guo-Chi Lee; Yao-Haur Kuo; Ya-Ching Shen

Publisher
John Wiley and Sons
Year
2011
Tongue
German
Weight
200 KB
Volume
94
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Five new oxygenated lignans with a dibenzocyclooctadiene skeleton, kadsuphilols P–T (1–5), and two new C~19~ homolignans, kadsuphilols U and V (6 and 7), were isolated by chromatographic fractionation of an AcOEt extract of the stems of Kadsura philippinensis. The structures of the isolated metabolites were elucidated through extensive spectroscopic analysis including HR‐ESI‐MS and 2D‐NMR (HMQC, COSY, and HMBC). The configuration at the chiral centers and at the biphenyl moiety were determined by interpretation of NOESY and CD data, respectively.

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