Chemical Constituents from Myrsine africana L.
✍ Scribed by Yan-Ping Zou; Chang-Heng Tan; Bao-De Wang; Da-Yuan Zhu; Se-Kwon Kim
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- German
- Weight
- 153 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Three new compounds, myrsinoside A (=2,4‐dihydroxy‐6‐methylphenyl β‐D‐(6′‐galloyl)glucopyranoside; 1), myrsinoside B (2,4‐dihydroxy‐6‐methylphenyl β‐D‐glucopyranoside; 2), and (3__β__,16__α__,20__α__)‐3,16,28‐trihydroxyolean‐12‐en‐29‐oic acid 3‐{O‐β‐D‐glucopyranosyl‐(1→2)‐O‐[β‐D‐glucopyranosyl‐(1→4)]‐α‐L‐arabinopyranoside} (3), along with four known compounds, were isolated from the stems of Myrsine africana L. The structures of these new compounds were elucidated on the basis of spectroscopic analysis, including 1D‐ and 2D‐NMR and ESI‐MS techniques, and chemical methods.
📜 SIMILAR VOLUMES
## Abstract Two new alkaloids, __i.e.__, (2,3‐dihydro‐1‐oxo‐1__H__‐pyrrolo[1,2‐__a__]pyrrol‐7‐yl)methyl (2__S__\*,3__S__\*)‐3‐[(__β__‐D‐glucopyranosyl)oxy]‐2‐hydroxy‐2‐(1‐methylethyl)butanoate (**1**) and 1,2‐dihydro‐8‐methoxy‐2‐oxoquinoline‐4‐carboxylic acid (**2**), were isolated from the alcohol
## Abstract A new triterpene, (3__β__,12__β__)‐taraxast‐20(30)‐ene‐3,12‐diol (=(3__β__,12__β__,18__α__,19__α__)‐urs‐20(30)‐ene‐3,12‐diol; **1**), together with the known compounds ursolic acid, __α__‐amyrin, __β__‐amyrin, (2__α__,3__β__)‐2,3‐dihydroxyursa‐5,12‐dien‐28‐oic acid, (2__α__,3__β__)‐2,3,