Phytoecdysteroids from Ajuga macrosperma var. breviflora roots

被引：36

作者：

Castro, Amaya ^{[1
]}

Coll, Josep ^{[1
]}

Tandron, Yudelsy A. ^{[1
]}

Pant, Anil K. ^{[2
]}

Mathela, Chandra S. ^{[3
]}

机构：

[1] CSIC, Dept Quim Organ Biol, Inst Invest Quim & Ambientals Barcelona Josep Pas, ES-08034 Barcelona, Spain

[2] Govind Ballabh Pant Univ Agr & Technol, Dept Chem, Pantnagar 263145, Uttar Pradesh, India

[3] Kumaun Univ, Coll Basic Sci & Humanities, Dept Chem, Naini Tal, India

来源：

JOURNAL OF NATURAL PRODUCTS | 2008年 / 71卷 / 07期

关键词：

D O I：

10.1021/np800131f

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Three new phytoecdysteroids, ajugacetalsterones C (1) and D (3) and breviflorasterone (2), were isolated from the roots of Ajuga macrosperma var. breviflora along with five known compounds, namely, 20-hydroxyecdysone, cyasterone, makisterone A, 20-hydroxyecdysone 3-acetate, and 20-hydroxyecdysone 2-acetate. The structures of 1-3 were elucidated on the basis of extensive 1D and 2D NMR spectroscopic studies. The new compounds possess acetal oxygen bridges between C-26 and C-20/C-22, or C-26/C-23, or a lactone bridge between C-26 and C-23.

引用

页码：1294 / 1296

页数：3

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