[Separation and identification of two benzotropolones from teapigment].
OBJECTIVE
To study the chemical constituents of teapigment.


METHODS
Some constituents were isolated by chromatographic methods and identified by chemical constituents and their structures were elucidated by spectral data.


RESULTS
From teapigment, two compounds have been isolated and identified as purpurogallin (I) and purpurogallin carboxylic acid (II).


CONCLUSIONS
These compounds were main pigments obtained from teapigment for the first time, and likely to be active compounds of teapigment.
Luo
Yongming
Y
Jiangxi College of Traditional Chinese medicine, Nanchang 330006.
Li
Yiguang
Y
Xie
Yihui
Y
D001567:Benzocycloheptenes / Q000032:analysis / Q000302:isolation & purification*; D015394:Molecular Structure; D010860:Pigments, Biological / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013662:Tea / Q000737:chemistry*
D001567:Benzocycloheptenes; D010860:Pigments, Biological; D010936:Plant Extracts; D013662:Tea; C026133:purpurogallin