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Neolignans from the Leaves of Casearia sylvestrisSwartz

✍ Scribed by Wei Wang; Zulfiqar Ali; Xing-Cong Li; Ikhlas A. Khan

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
184 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Six new neolignans, casearialignans A–F (1–6, resp.) and one known lignan syringaresinol‐β‐D‐glucoside were isolated from the leaves of Casearia sylvestris. Their structures were determined on the basis of 1D‐ and 2D‐NMR, and HR‐ESI‐MS analyses. The relative and absolute configurations were determined by the value of the coupling constants and CD spectral analysis, respectively.

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✍ Wei Wang; Zulfiqar Ali; Xing-Cong Li; Ikhlas A. Khan 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 German ⚖ 226 KB

## Abstract Five new clerodane diterpene glycosyl derivatives, caseariasides A–E (**1**–**5**, resp.) and three new __ent__‐kaurane diterpene glucosides, sylvestrisides C–E (**6**–**8**, resp.) were isolated from the leaves of __Casearia sylvestris.__ Their structures were determined on the basis o