Tetracyclic triterpenoids of the fruit coats of Azadirachta indica

被引：18

作者：

Siddiqui, BS ^{[1
]}

Ghiasuddin ^{[1
]}

Faizi, S ^{[1
]}

机构：

[1] Univ Karachi, Hej Res Inst Chem, Karachi 75270, Pakistan

来源：

PHYTOCHEMISTRY | 1998年 / 47卷 / 08期

关键词：

Azadirachta indica; Meliaceae; fruit coats; tetracyclic triterpenoids; salimuzzalin; azadirolic acid; azadiradionol; azadironol;

D O I：

10.1016/S0031-9422(97)00826-1

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

From the ethanolic extract of the fresh fruit coats of Azadirachta indica (neem), four new tetracyclic triterpenoids salimuzzalin [24,25,26,27-tetranorapotirucalla(apoeupaa)-7 alpha-hydroxy-21 xi,23 xi-diacetoxy-21,23-epoxy-1,14,20(22)-trien-3-one], azadirolic acid [26,27-dinorapotirucalla(apoeupha)-6 beta-acetoxy-7 alpha-hydroxy- 1,14,20(22)-trien-3-one-25-oic acid], azadiradionol [26,27-dinorapotirucalla(apoeupha)-7 alpha-acetoxy-24 xi-hydroxy- 1,14-dien-3,16-dione] and azadironol [4,4,8-trimethyl-5 alpha-(13 alpha Me)-androst-17 alpha-hydroxy-1-en-7 alpha(p-methoxy, m-hydroxy trans cinnamoyloxy)-3-one], were isolated. Their structures were elucidated through spectroscopic techniques. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1631 / 1636

页数：6

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