Labdane diterpenes from Cistus symphytifolius
| Autor: | Cosme G. Francisco, Ernesto Suárez, Manuel Cortés, Rosendo Hernández, M. T. Calabuig |
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| Přispěvatelé: | Ministerio de Asuntos Exteriores y Cooperación (España), Comisión Asesora de Investigación Científica y Técnica, CAICYT (España) |
| Rok vydání: | 1981 |
| Předmět: |
Labdanolic acid
Stereochemistry Cistus symphytifolius Salvic acid Plant Science Cistaceae Labdane diterpenes Horticulture Biochemistry Labdane chemistry.chemical_compound Cistadienic acid Organic chemistry Labdenic acid Molecular Biology Cativic acid labdan-8α 15-diol Bicyclic molecule biology Trimethoxykaempferol General Medicine biology.organism_classification Sitosterol labd-13(E)-ene-8α-15-diol chemistry Jara Enantiomer Cistenolic acid |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/0031-9422(81)80124-0 |
| Popis: | 4 pages. 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). Part of this work was subsidized by the Comisión Asesora de Investigación Científica y Técnica. M.C. wishes to thank the Centro Iberoamericano de Cooperación of Spain for a fellowship. |
| Databáze: | OpenAIRE |
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