108907-47-7Relevant articles and documents
Tannins and Related Compounds. LVI. Isolation of Four New Acylated Flavan-3-ols from Oolong Tea. (1)
Hashimoto, Fumio,Nonaka, Gen-Ichiro,Nishioka, Itsuo
, p. 611 - 616 (2007/10/02)
A chemical examination of the aqueous acetone extract of commercial oolong tea has led to the isolation of four new acylated flavan-3-ols 1-4, together with the known compounds 5-13.On the basis of chemical and spectroscopic evidence, compounds 1-4 have been characterized as (-)-epiafzelechin 3-O-gallate (1), (-)-epicatechin 3-O-(4-O-methyl)-gallate (2), (-)-epicatechin 3-O-p-hydroxybenzoate (3) and (-)-epigallocatechin 3-O-cinnamate (4).