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Terpenes From Otostegia Integrifolia

Terpenes From Otostegia Integrifolia

Hailemichael Tesso, Wilfried A König

Phytochemistry. 2004 Jul;65(14):2057-62.

PMID: 15279972

Abstract:

The essential oil and chloroform extract of air-dried leaves of Otostegia integrifolia Benth. were investigated for the first time using analytical and preparative gas chromatography (GC), GC-mass spectrometry (MS) and NMR techniques. A total of 40 constituents including monoterpenes, sesquiterpenes, diterpenes and their derivatives were identified. A prenylbisabolane type diterpene, 1-methyl-4-(5,9-dimethyl-1-methylene-deca-4,8-dienyl)cyclohexene was identified as a major component. The chloroform extract of the leaves yielded two labdane type diterpenoids, 15,16-epoxy-3alpha,9alpha-dihydroxy-labda-13(16),14-diene and 9(13),15(16)-diepoxy-3alpha-hydroxy-16-dihydrolabda-14-ene, a saturated hydrocarbon, pentatriacontane, and stigmasterol. The structures of the isolated compounds were established by spectroscopic methods.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP630079	Pentatriacontane		630-07-9	Price

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