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Isotheasaponins B1-B3 from Camellia sinensis var. sinensis tea leaves
Keiko Kobayashi1, Toshiaki Teruya, Kiyotake Suenaga
1Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
Phytochemistry
|July 1, 2006
Abstract:
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.
