title: An unique n-propyl sesquiterpene from Eryngium creticum L. (Apiaceae).
abstract: The unique 1-n-propyl-perhydronaphthaline 1,2,4a,5,6,7,8,8a-octahydro-4-methyl-1-propyl-naphthalene-7-carbaldehyde, a compound which possesses an unusual sesquiterpene carbon skeleton, was isolated and identified, together with the new natural methyl ketone eicos-8,11 -dien-18-ol-2-one, from the hexane: ether extract of the aerial parts of Eryngium creticum growing in Sinai, Egypt. The structures were established by conventional methods of analysis and confirmed by DEPT, COSY, HMQC and HMBC.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt. ayoub.n@link.com.eg
authors.forename: N A
authors.initials: NA
authors.lastname: Ayoub
authors.forename: K H
authors.initials: KH
authors.lastname: Kubeczka
authors.forename: M A M
authors.initials: MA
authors.lastname: Nawwar
mesh_terms: D002241:Carbohydrates / Q000737:chemistry* / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D031049:Eryngium / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D009281:Naphthalenes / Q000737:chemistry* / Q000302:isolation & purification; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002241:Carbohydrates; D007202:Indicators and Reagents; D009281:Naphthalenes; D012717:Sesquiterpenes