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picria felterrae/glycoside
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6 resultados
Complement-inhibiting cucurbitacin glycosides from Picria fel-terrae.
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Four cucurbitacin glycosides were isolated from Picriafel-terrae and identified by MS and NMR spectroscopy as picfeltarraenin IA (1), picfeltarraenin IB (2), picfeltarraenin IV (4), and a new compound picfeltarraenin VI (3) (picfeltarraegenin I 3-O-beta-D-xylopyranoside). All four compounds acted as
A phenylpropanoid glycoside with antioxidant activity from Picria tel-ferae.
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A phytochemical study on Picria tel-ferae resulted in the isolation of a phenylpropanoid glycoside (1), which was reported for the first time from this plant. The structure of compound 1 was identified as 1-O-3,4-(dihydroxyphenyl)- ethyl-beta-D- apiofuranosyl- (1-->4)-alpha-L-rharmnopyranosyl-
A new picfeltarraenone glycoside from Picria fel-terrae.
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OBJECTIVE
To investigate the chemical constituents from Picria fel-terrae Lour.
METHODS
Column chromatography techniques were used to isolate the chemical constituents, physico-chemical constants and spectroscopic analysis were employed for structural elucidation. Results Two triterpenoids named
[Studies on technology optimization for extracting triterpenoid saponins from Picria felterrae by multi-target grading method].
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OBJECTIVE
To study the optimum extraction conditions of triterpenoid saponins from Picria felterrae.
METHODS
The optimum extraction conditions were investigated by the contents of the total glycosides and picfeltarraenine I A and I B, using orthogonal test.
RESULTS
The optimum extraction conditions
The Immunomodulatory Activities of Picria Fel-Terrae Lour Herbs towards RAW 264.7 Cells.
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AIM
To investigate immunomodulatory activities of Picria fel-terrae Lour herbs extract against inflammatory biomarkers by conducting cell culture experiments.MATERIAL AND METHODS
The herbs of Picria fel-terrae Lour were dried and extracted[Isolation and identification of a new cucurbitacin from Picria fel-terrae].
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OBJECTIVE
To study compounds isolated from Picria fel-terrae.
METHODS
The chemical constituents were separated and purified by column chromatography on silica gel and MCI. Their structures were identified on the basis of spectral data (IR, UV, MS, ID NMR and 2D NMR).
RESULTS
A new cucurbitacin,
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