Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials 2005-Mar
[Study on three aristololatams from Piper wallichii].
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OBJECTIVE
To study the chemical constituents from Piper wallichii.
METHODS
Three aristololatams were isolated and purified by chromatography with silica gel column and Sephadex LH-20 gel column, and the structures of the compounds were identified by spectral analysis.
RESULTS
Three aristololatams were identified as cepharanone B, aristolactam A II and aristololatam A III a.
CONCLUSIONS
Three aristololatams were isolated from Piper wallichii for the first time.