OBJECTIVE: To study the chemical constituents of paeoniflorins from root cortex of the Paeonia suffruticosa. METHOD: Paeoniflorins were isolated by partition, silica gel column chromatography, medium-pressure RP chromatography and HPLC. Their structures were elucidated by spectroscopic methods including IR, MS and NMR techniques. RESULT: Nine paeoniflorins were isolated and identified from the root bark ethanol extract of P. suffruticosa. CONCLUSION: The new compound was identified as paeoniflorin-4-ethyl ether, which may be an artifact produced during extraction proved by simulate experiment.
OBJECTIVE: To study the chemical constituents of paeoniflorins from root cortex of the Paeonia suffruticosa. METHOD:Paeoniflorins were isolated by partition, silica gel column chromatography, medium-pressure RP chromatography and HPLC. Their structures were elucidated by spectroscopic methods including IR, MS and NMR techniques. RESULT: Nine paeoniflorins were isolated and identified from the root bark ethanol extract of P. suffruticosa. CONCLUSION: The new compound was identified as paeoniflorin-4-ethyl ether, which may be an artifact produced during extraction proved by simulate experiment.