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A new sesquiterpenoid coumarin from Ferula assafoetida
Anindita Ghosh1, Avijit Banerji, Suvra Mandal
1Centre of Advanced Studies on Natural Products including Organic Synthesis, Department of Chemistry, Calcutta University, Kolkata, India.
Abstract:
The gum resin of Ferula assafoetida Linn. afforded one new sesquiterpene, asimafoetida 1 and three known sesquiterpenoid coumarins. The structure has been established from extensive 2D NMR spectral studies as 7'-[7-(1R,3S)-5-Hydroxy-6,6-dimethyl-2-methylene-cyclohexyl]-9-methyl-9-pentenyl]oxy]-2H-1-benzopyran-2-one. The other three known compounds are ferulic acid, farnesiferol A and farnesiferol C.
