Sesquiterpenes from Juniperus thurifera L. stereochemistry in unusual cedrane and duprezianane series

被引：29

作者：

Barrero, AF ^{[1
]}

del Moral, JQ ^{[1
]}

Lara, A ^{[1
]}

机构：

[1] Univ Granada, Fac Ciencias, Inst Biotechnol, Dept Quim Organ, E-18071 Granada, Spain

来源：

TETRAHEDRON | 2000年 / 56卷 / 23期

关键词：

natural products; terpenoids; stereochemistry;

D O I：

10.1016/S0040-4020(00)00292-1

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The analysis of the essential oil from the wood of Juniperus thurifera has provided the isolation of seven new natural products, including the first described examples of 2-epi-cedranes and 2-epi-duprezianane. The co-occurrence in the oil of the three cedrane-type arrangements (cedrane, 1,7-diepi-cedrane and 2-epi-cedrane) has permitted, after a thorough 2D NMR analysis the unequivocal spectroscopical assignment of each of the three cedrane skeletons, and subsequently the development of an unambiguous method for establishing their stereochemistries. A useful pattern for distinguishing between the two duprezianane stereochemistries is also given. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：3717 / 3723

页数：7

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