Isotheasaponins B1-B3 from Camellia sinensis var. sinensis tea leaves.
Three saponins, isotheasaponins B1-B3, were isolated from the leaves of the tea plant Camellia sinensis var. sinensis, and their structures were determined to be theasapogenol B [beta-D-galactopyranosyl(1-->2)][beta-D-xylopyranosyl(1-->2)-alpha-L-arabinopyranosyl(1-->3)]-beta-D-gulcopyranosiduronic acid with two acyl groups by spectroscopic analysis.
Kobayashi
Keiko
K
Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
Teruya
Toshiaki
T
Suenaga
Kiyotake
K
Matsui
Yoko
Y
Masuda
Hideki
H
Kigoshi
Hideo
H
D001628:Beverages; D028241:Camellia sinensis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D012503:Saponins / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry
D012503:Saponins; D014315:Triterpenes; C514273:isotheasaponin B1; C514274:isotheasaponin B2; C514275:isotheasaponin B3; C018398:theasaponine