ABSTRACT
Seven coumarins, including a new O-terpenoidal coumarin, named anisumarin (1), were isolated from Clausena anisum-olens Merr. The structure of this new coumarin was identified as 7-{(E)-4-[(4-acetoxymethyl-1,5-dihydro-5-oxo)-2H-furylium-2-yl]-3-methyl-2-butenoxy}-8-methoxycoumarin on the basis of an extensive spectroscopic analysis.
Subject(s)
Clausena/chemistry , Coumarins/chemistry , Coumarins/isolation & purification , Magnetic Resonance SpectroscopyABSTRACT
Four triterpenes 1-4, including a new naturally occurring oleanane-type triterpene 1, were isolated by a multi-step chromatography procedure from the leaves and twigs of Stachyurus himalaicus var. himalaicus Hook. f. et Thoms.ex Benth. The structures of the compounds were elucidated by spectroscopic methods, including HRESIMS, 1H- NMR, 13C-NMR, DEPT, HMQC, HMBC and NOESY spectra. All the isolated compounds were evaluated for their in vitro cytotoxic activities against human Hela cell line.
