Two new antioxidant diarylheptanoids from the fruits of Alpinia oxyphylla.
J Asian Nat Prod Res
; 15(10): 1094-9, 2013.
Article
in En
| MEDLINE
| ID: mdl-23869536
Two new diarylheptanoids, 1-(3',5'-dihydroxy-4'-methoxyphenyl)-7-phenyl-3-heptanone (1) and 1-(2',4'-dihydroxy-3'-methoxyphenyl)-7-(4â³-methoxyphenyl)-3-heptanone (2), along with known diarylheptanoid yakuchinone A (3), and five flavanoids, tectochrysin (4), chrysin (5), izalpinin (6), kaempferol 7, 4'-dimethyl ether (7), and kaempferide (8) were isolated from the fruits of Alpinia oxyphylla Miq. Their structures were determined by means of spectroscopic methods. Antioxidant activities of all the isolated compounds were evaluated using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Compounds 1-3 and 6-8 exhibited potent antioxidant activities in the DPPH assay.
Full text:
1
Database:
MEDLINE
Traditional Medicines:
Medicinas_tradicionales_de_asia
/
Medicina_china
Main subject:
Flavonoids
/
Drugs, Chinese Herbal
/
Alpinia
/
Diarylheptanoids
/
Antioxidants
Language:
En
Journal:
J Asian Nat Prod Res
Year:
2013
Type:
Article
Affiliation country:
China