title: Asimafoetidnol: a new sesquiterpenoid coumarin from the gum resin of Ferula assa-foetida.
abstract: Chemical investigation of the gum resin of Ferula assa-foetida L. resulted in the isolation of a new sesquiterpenoid coumarin, 7-(((E)-5-((1S,3S,6S)-3,6-dihydroxy-2,2,6-trimethylcyclohexyl)-3-methylpent-2-en-1-yl)oxy)-2H-chromen-2-one (asimafoetidnol), together with several other known compounds. The structure of asimafoetidnol was established on the basis of spectroscopic analyses. Geometry optimization of the compound has been carried out using a DFT/B3LYP/3-21G* method.
authors.affiliation: Department of Biochemistry, DCCS, Rajbandh, Durgapur, West Bengal, Pin 713212, India.
authors.forename: Debasish
authors.initials: D
authors.lastname: Bandyopadhyay
authors.forename: Manas
authors.initials: M
authors.lastname: Banerjeeb
authors.forename: Subrata
authors.initials: S
authors.lastname: Laskar
authors.forename: Bidyut
authors.initials: B
authors.lastname: Basak
mesh_terms: D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D005309:Ferula / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D053149:Plant Gums / Q000737:chemistry*; D012116:Resins, Plant / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D003374:Coumarins; D053149:Plant Gums; D012116:Resins, Plant; D012717:Sesquiterpenes; C557441:asimafoetidnol