Yao xue xue bao = Acta pharmaceutica Sinica 2003-Sep
[A new alkaloid from Opuntia vulgaris].
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OBJECTIVE
To study the chemical constituents of the stems of Opuntia vulgaris Mill(Cactaceae).
METHODS
The compounds of Opuntia vulgaris were isolated by chromatography of Amberlite Dowex 50 and silica gel, and identified by means of UV, IR, MS, 1D and 2D NMR.
RESULTS
Three compounds were isolated and identified as: opuntin B(I), 4-hydroxyproline(II) and tyrosine(III).
CONCLUSIONS
Compound I is a new alkaloid.
