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New Polyoxygenated Triterpenoids from Stachyurus himalaicus var. himalaicus.

✍ Scribed by Jing-Hua Yang; Yun-Song Wang; Rong Huang; Shi-De Luo; Hong-Bin Zhang; Liang Li

Publisher
John Wiley and Sons
Year
2007
Weight
16 KB
Volume
38
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

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New Polyoxygenated Triterpenoids from St
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✍ Jing-Hua Yang; Yun-Song Wang; Rong Huang; Shi-De Luo; Hong-Bin Zhang; Liang Li πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 German βš– 82 KB

Two new polyoxygenated triterpenoids, stachlic acid A (= (2a,3b)-2,3,23,29-tetrahydroxyolean-12en-28-oic acid; 1) and stachlic acid B (= (2a,3a)-2,29-dihydroxy-3,23-[(1,1-dimethylmethylene)dioxy]olean-12-ene-28-oic acid; 2), were isolated from Stachyurus himalaicus var. himalaicus. Their structures

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## Abstract Two new polyoxygenated triterpenoids, (2__Ξ²__,3__Ξ±__,6__Ξ±__)‐2,3,6,20,23,30‐hexahydroxyurs‐12‐en‐28‐oic acid (**1**) and (2__Ξ²__,3__Ξ±__)‐2,3,20,23,24,30‐hexahydroxyurs‐12‐en‐28‐oic acid __O__‐__Ξ²__‐D‐glucopyranosyl ester (**2**) were isolated from the roots of __Actinidia valvata__ Dunn

Three New 24-Noroleanane Triterpenoids f
Three New 24-Noroleanane Triterpenoids from Quercus aliena var. acuteserrata
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Three new 24-noroleanane triterpenoids, i.e., 2a,19a-dihydroxy-3-oxo-24-norolean-12-en-28-oic acid (1) and 19a-hydroxy-3-oxo-24-norolean-12-en-28-oic acid (2), and 2a,3b,19a-trihydroxy-24-norolean-12en-28-oic acid (3) were isolated from Quercus aliena var. acuteserrata, together with three known com