Two novel tannins, pinocembrin-7- O -[4‘‘,6‘‘-( S )-hexahydroxydiphenoyl]-β- d -glucose ( 1 ) and pinocembrin-7- O -[3‘‘- O -galloyl-4‘‘,6‘‘-( S )-hexahydroxydiphenoyl]-β- d -glucose ( 2 ) were isolated from Phyllanthus tenellus . The structures of new tannins were established on the basis of spectral and chemical evidence.
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Huang et al. (1998) studied this question.
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