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[Phenols from the rhizomes of Arachniodes exilis]
Dao-Nian Zhou1, Jin-Lan Ruan, Ya-Ling Cai
1College of Pharmacy,Tongji Medical Center, Huazhong University of Science and Technology, Wuhan 430030,China.
Objective:
To study the chemical constituents of Arachniodes exilis.
Methods:
The methanolic extract was isolated and purified by silica gel, C18 reverse phase silica gel and Sepadex LH-20 gel column chromatography. The chemical structures were elucidated on the basis of the physicochemical properties and spectral data.
Results:
Eight phenolic compounds were obtained and identified as aspidin-BB (I), 4-methyl-2-butyl-3,5-dihydroxyphenol (II ), eriodictyol (III), epicatechin (IV), procyanidin B2 (V), miscathoside (VI), eriodictyol-7-O-beta-D-glucopyranuronide (VII), luteolin-4'-O-beta-D-glucopyranuronide (VIII), respectively.
Conclusion:
Compounds II-VIII are obtained from this plant for the first time.