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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/13460
Title: Labdane diterpenes from Cistus symphytifolius
Authors: Calabuig, M. T.; Cortés, Manuel; Francisco, Cosme G. ; Hernández, Rosendo ; Suárez, Ernesto
Keywords: Cistus symphytifolius
Labdane diterpenes
Cativic acid
Labdenic acid
Labdanolic acid
Cistadienic acid
Cistenolic acid
Issue Date: 1981
Publisher: Elsevier
Citation: Phytochemistry 20(9): 2255-2258 (1981)
Abstract: The investigation of the aerial part of Cistus symphytifolius afforded, in addition to sitosterol, trimethoxykaempferol, cativic acid, labdenic acid, labdanolic acid and labdan-8α,15-diol, three new bicyclic diterpenes: cistadienic acid, cistenolic acid and labd-13(E)- ene-8α,15-diol. The structures of these were determined by spectral studies and correlations. CD spectral studies showed that cistenolic acid and salvic acid are enantiomeric compounds, so the stereochemistry of salvic acid (7α-hydroxy-labd-8(17)-ene-15-oic acid) should be changed to 7β-hydroxy-eperu-8(17)-ene-15-oic acid (7β-hydroxy-ent-labd-8(17)-ene-15-oic acid).
Description: 4 pages.
Publisher version (URL): http://dx.doi.org/10.1016/0031-9422(81)80124-0
URI: http://hdl.handle.net/10261/13460
DOI: 10.1016/0031-9422(81)80124-0
ISSN: 0031-9422
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