Studies on the Chemical Constituents from Tradescantia albiflora Kunth
Date Issued
2008
Date
2008
Author(s)
Tseng, Han-Chun
Abstract
Tradescantia albiflora Kunth is a species of spiderwort. In the past it was considered an invasive species or pest plant and was consequently targeted for eradication. Recently, it was found T. albiflora can decrease the level of blood uric acid.he whole plants of of T. albiflora were extrated with methanol. The extract was concentrated in vacuo to yield the residue which was suspended in water, and then partitioned with ethyl acetate. The ethyl acetate layer was separated by column chromatography on silica gel, preparative thin layer chromatography and high performance liquid chromatography (HPLC) to obtain 40 compounds, including 2 amides, 7 apocarotenoids, 13 aromatics, 1 chlorophyll, 1 flavonoid, 7 steroids, 2 triterpenoids and 7 other compounds. Among them, 3 compound are new compounds.he known compounds were identified by spectral analysis and compared with those reported in literatures or from authentic samples. The structures of new compounds were elucidated by spectral evidence including 1D and 2D NMR techniques.
Subjects
Tradescantia albiflora Kunth
NMR
catechol
apocarotenoid
Type
thesis
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