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Structure elucidation of five new iridoid glucosides from the leaves of Avicennia marina

✍ Scribed by Yu Sun; Jie Ouyang; Zhiwei Deng; Qingshan Li; Wenhan Lin

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 156 KB
Volume: 46
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.2224

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✦ Synopsis

Abstract

A chemical examination of the mangrove plant Avicennia marina (Forrsk.) Vierh resulted in the isolation and characterization of five new iridoids, marinoids A–E (1–5), along with 2′‐cinnamoyl‐mussaenosidic acid (6), 2′‐O‐(4″‐methoxycinnamoyl) mussaenosidic acid (7), 2′‐O‐(4″‐hydroxycinnamoyl) mussaenosidic acid (8), and 3(R)‐hydroxy‐5‐phenyl‐4(E)‐pentenoic acid (9). The structures of 1–5 were elucidated on the basis of 1D and 2D NMR (COSY, HMQC, HMBC, and NOESY) in association with IR and MS data analysis. Copyright © 2008 John Wiley & Sons, Ltd.

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