Structure Identification: |
Modern Chinese Medicine, 2008,10(11):13-5. | Studies on the Chemical Constituents of Alpinia Calanga Willd.[Reference: WebLink] | To study the chemical constituents of Alpinia galanga Willd. METHODS AND RESULTS: The chem- ical constituents were isolated by various column chromatographic methods,and the structures were elucidated on the basis of UV,IR,MS,~1H-NMR,~(13)C-NMR spectral analysis. Eleven compounds were isolated and their structures were elucidated as 4-[(E)-3-hydroxyprop-1-enyl]phenyl acetate(1),trans-p-hydroxylcinnamaldehyde acetate(2),5-hydroxy-7-(4″-hydroxy-3″-methoxyphenyl)-1-phenyl-3-heptanone(3),7-(4″-hydroxy-3″-me- thoxyphenyl)-1-phenylhep-4-en-3-one(4),[1′S]-1′-acetoxyeugenol acetate(5),trans-p-hydroxylcinnamalde- hyde(6),p-hydroxybenzaldehyde(7),1-(4-Hydroxyphenyl)propan-1-one(8),galangin(9),trans-p-coumaryl diacetate(10),β-sitosterol(11). CONCLUSIONS: Compound 1 was obtained from nature for the first time,com- pound 2 was obtained from this genus for the first time,and compounds 3 and 4 were obtained from this plant for the first time. |
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