A new 4′,7-epoxy-8,3′-oxyneolignan from the acetone extract of Juniperus brevifolia leaves

A new oxyneolignan (rel-(7 alpha,8 beta)-3-methoxy-4',7-epoxy-8,3'-oxyneolignan-4,9,9'-triol) with a scarce C-7-O-C-4' and C-8-O-C-3' epoxy linkage, along with eight known compounds, abieta-8,11,13-triene, sandaracopimara-8(14), 15-diene, 6,7-dehydroferruginol methyl ether, 18-hydroxydehydroabietane, sandaracopimara-8(14), 15-dien-18-ol, docosanol, sugiol and palmitic acid, were isolated from the chloroform-soluble fraction of the acetone extract from Juniperus brevifolia leaves. Their structures were established on the basis of the spectral evidences and direct comparison with values from literature data. (C) 2010 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.