Eryvarins F and G, two 3-phenoxychromones from the roots of Erythrina variegata.
Two 3-phenoxychromones, eryvarins F and G, were isolated from the roots of Erythrina variegata. Their structures were established to be 3-(2,4-dihydroxyphenoxy)-7-hydroxy-6,8-di(3,3-dimethylallyl)chromen-4-one and 3-(2,4-dihydroxyphenoxy)-8-(3,3-dimethylallyl)-2,2-dimethylpyrano[5,6:6,7]chromen-4-one on the basis of spectroscopic and chemical evidence. Eryvarins F and G are unusual 3-phenoxychromone derivatives with two isoprenoid groups.
Tanaka
Hitoshi
H
Faculty of Pharmacy, Meijo University, Yagoto, Tempaku-ku, Nagoya 468-8503, Japan. hitoshi@ccmfs.meijo-u.ac.jp
Hirata
Miyuki
M
Etoh
Hideo
H
Shimizu
Hiroshi
H
Sako
Magoichi
M
Murata
Jin
J
Murata
Hiroko
H
Darnaedi
Dedy
D
Fukai
Toshio
T
D002850:Chromatography, Gel / Q000379:methods; D002867:Chromones / Q000737:chemistry* / Q000302:isolation & purification; D004895:Erythrina / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D013729:Terpenes / Q000737:chemistry
D002867:Chromones; D013729:Terpenes; C474269:eryvarin F; C474270:eryvarin G