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《Acta Chimica Sinica》 1990-08
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Studies on Constituents of Tannin from Potentilla viscosa J. Don

Huang, Qing Zhang, Ben Zhang, Hong-Yan Li, Chao-Sheng Lü, Lin (The Academy of Traditional Chinese Medicine and Material Medica, Changchun) Nonaka, Gen-Ichiro Nishioka, Itsuo (Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan)  
Seven oompounds were isolated from the root of Potentilla viscosa J. Don, family Rosaoeae. By means of ~1H NMR, ~(13)C NMR and MS spectral analysis and chemical studies, their chemical structures were elucidated to be (+)-catechin (1), (+)-catechin-3-O-β-D-glucoside (2), afzelechin(4α-8)-catechin (3), procyanidin B-3(4), procyanidin B-3 3'-O-β-D-glueopyranoside (5), procyanidin C-2(6) and potentillanin (7) respectively. Compound 5 and 7 were new compounds. Compound 2 exhibited protecive effect on hepatitis symptoms of test animals.
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