[Study on three aristololatams from Piper wallichii].
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.
Zhao
Yun
Y
College of Pharmacy, Tongji Medical Center, Huazhong University of Science and Technology, Wuhan.
Ruan
Jinlan
J
Cai
Yaling
Y
D034341:Aristolochic Acids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D031701:Piper / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011208:Powders
D034341:Aristolochic Acids; D011208:Powders; C064674:aristololactam BII