[Phenols from the rhizomes of Arachniodes exilis].
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.


CONCLUSIONS
Compounds II-VIII are obtained from this plant for the first time.
Zhou
Dao-Nian
DN
College of Pharmacy,Tongji Medical Center, Huazhong University of Science and Technology, Wuhan 430030,China.
Ruan
Jin-Lan
JL
Cai
Ya-Ling
YL
Zhang
Song-An
SA
Wu
Xiao-Hui
XH
Feng
Chao
C
D044946:Biflavonoids / Q000737:chemistry / Q000302:isolation & purification; D002392:Catechin / Q000737:chemistry / Q000302:isolation & purification; D032491:Dryopteridaceae / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry / Q000302:isolation & purification; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D044945:Proanthocyanidins / Q000737:chemistry / Q000302:isolation & purification; D027343:Rhizome / Q000737:chemistry*
D044946:Biflavonoids; D044950:Flavanones; D010636:Phenols; D044945:Proanthocyanidins; C479580:procyanidin B2; D002392:Catechin; C007619:eriodictyol