来自钝叶原朴树脂的三萜类化合物。

Triterpenes from Protium hebetatum resin.

作者信息

Marques Delcio Dias, Graebner Ilmar Bernardo, de Lemos Telma Leda Gomes, Machado Luciana Lucas, Assunção Jõao Carlos Costa, Monte Francisco José Queiroz

机构信息

Centro de Ciências da Natureza e Biológicas, Universidade Federal do Acre, 69915-900 Rio Branco-AC, Brazil.

出版信息

Nat Prod Commun. 2010 Aug;5(8):1181-2.

PMID:20839613

Abstract

Three olean (beta-amyrenone, beta-amyrin and maniladiol), three ursane (alpha-amyrinone, alpha-amyrin and breine) and four tirucallane (3-oxotirucalla-8,24-dien-21-6ic acid, 3alpha-hydroxytirucalla-8,24-dien-21-oic acid, 3alpha-acetoxytirucalla-8,24-dien-21-oic acid and 3alpha-hydroxytirucalla-7,24-dien-21-oic acid) triterpenes were isolated from the oleoresin of Protium hebetatum Daly. The structures were established mainly by 13C, 1D and 2D NMR spectroscopic analysis. The isolation of 3alpha-hydroxytirucalla-8,24-dien-21-oic acid permitted correction of the chemical shift assignments of some of its carbon atoms.

摘要

从钝叶原檀（Protium hebetatum Daly）的油树脂中分离出了三种齐墩果烷型（β-香树脂酮、β-香树脂醇和马尼拉二醇）、三种乌苏烷型（α-香树脂酮、α-香树脂醇和布瑞尼）以及四种四环三萜（3-氧代四环三萜-8,24-二烯-21-6-酸、3α-羟基四环三萜-8,24-二烯-21-酸、3α-乙酰氧基四环三萜-8,24-二烯-21-酸和3α-羟基四环三萜-7,24-二烯-21-酸）。其结构主要通过¹³C、一维和二维核磁共振光谱分析确定。3α-羟基四环三萜-8,24-二烯-21-酸的分离使得对其部分碳原子的化学位移归属得以校正。