Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials 2015-Sep
[Chemical Composition of n-Butanol Fraction from Polygonum amplexicaule var. sinense].
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OBJECTIVE
To study chemical composition of n-butanol fraction from Polygonoum amplexicaule var. sinense.
METHODS
TLC,normal-phase silica gel, reveres-phase silica gel, Sephadex-LH and semi-preparative HPLC were used to isolate chemical compositions of n-butanol fraction from Polygonoum amplexicaule var. sinense.
RESULTS
Nine compounds were identified as: caffeic acid n-butly ester (1), p-methoxy benzoic acid propyl ester (2),p-E-coumarin quinic acid methyl ester (3),p-Z-coumarin quinic acid methyl ester (4), ethyl ferulate (5), cinchonain I a (6), cinchonain Ib (7), methyl chlorogenate(8), and 6-O-β-D-caffeoylglucose (9).
CONCLUSIONS
All compounds are isolated from this genus for the first time.
