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Closed Access item Labdane diterpenes from Cistus symphytifolius

Authors:Calabuig, M. T.
Cortés, Manuel
Francisco, Cosme G.
Hernández, Rosendo
Suárez, Ernesto
Keywords:Cistus symphytifolius, Cistaceae, Jara, Sitosterol, Trimethoxykaempferol, Labdane diterpenes, Cativic acid, Labdenic acid, Labdanolic acid, Cistadienic acid, Cistenolic acid, labd-13(E)-ene-8α-15-diol, labdan-8α,15-diol
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
ISSN:0031-9422
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Appears in Collections:(IPNA) Artículos

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