ABSTRACT
A new monoterpene-glycoside (2-exo-beta-D-glucopyranosyl-1,8-cineol) named bucharioside from the methanol-soluble part and a new sesquiterpenoid (4,10-epoxy-6alpha-hydroxyguaiane) named buchariol from the hexane-soluble part of Salvia bucharica were obtained. Their structures were elucidated with the help of NMR spectroscopy including 1D and 2D experiments.
Subject(s)
Glucosides/chemistry , Menthol/analogs & derivatives , Monoterpenes , Plant Extracts/chemistry , Plants, Medicinal , Sesquiterpenes, Guaiane , Sesquiterpenes/chemistry , Terpenes/chemistry , Cyclohexane Monoterpenes , Glucosides/isolation & purification , Magnetic Resonance Spectroscopy , Mass Spectrometry , Menthol/chemistry , Menthol/isolation & purification , Molecular Conformation , Molecular Structure , Optical Rotation , Sesquiterpenes/isolation & purification , Spectrometry, Mass, Secondary Ion , Terpenes/isolation & purificationABSTRACT
The essential oils of SOLVIA CABULICO Benth. (Labiatae) collected in July, 1996 (sample A), and June, 1997 (sample B), were isolated by hydrodistillation and analyzed by means of GC and GC/MS. The oils were rich in monoterpenes. Two oxygenated monoterpenes, alpha-thujone (51.3% for sample A and 34.4% for sample B) and camphor (24.0% for sample A and 22.6% for sample B) constituted about 75% and 57% of these oils, respectively. The other constituents of the oils were: alpha-pinene, sabinene, camphene, beta-pinene, myrcene, P-cymene, limonene, 1,8-cineole, gamma-terpinene, beta-thujone, borneol, 4-terpineol, alpha-terpineol, caryophyllene, bornyl acetate, 9-aristolen-1-alpha-ol, caryo-phyllene oxide and valaranone.
ABSTRACT
Three new diterpene esters with a tricyclic lathyraneor myrsinol-type skeleton have been isolated from Euphorbia decipiens Boiss & Buhse. The structures have been elucidated by different spectroscopic methods including 1D and 2D NMR spectroscopy techniques.