scandoside methyl ester/hedyotis

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[Determination of scandoside methyl ester in Hedyotis chrysotricha by HPLC].

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Ielogoties Reģistrēties

OBJECTIVE To develop an HPLC method for determination of scandoside methyl ester in Hedyotis chrysotricha. METHODS The determination was carried out on an HC-C18 column elnted with acetonitrile-water (7:93) as mobile phase, and the detection wavelength was set at 238 nm. RESULTS There is a good

Total coumarins of Hedyotis diffusa induces apoptosis of myelodysplastic syndrome SKM-1 cells by activation of caspases and inhibition of PI3K/Akt pathway proteins.

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Ielogoties Reģistrēties

BACKGROUND Hedyotis diffusa is an ethno-medicine used for anti-cancer treatment in the clinic of traditional Chinese medicine (TCM). The total coumarins of Hedyotis diffusa (TCHD) was a selected extract with observed antiproliferative activity, which has not been tested in treatment of

[Chemical investigation of genus Hedyotis. II. Isolation and identification of iridoids from Hedyotis chrysotricha].

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Ielogoties Reģistrēties

Many species of genus Hedyotis (Rubiaceae) were used as folk medicine for treatment of cold, inflammation, cancer and etc. in China. The alcoholic extract of the whole plant of H. chrysotricha showed good hepatoprotective effects. From the alcoholic extract ten iridoids were isolated and their

[Studies on the chemical constituents in herb of Hedyotis diffusa].

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Ielogoties Reģistrēties

OBJECTIVE To study the chemical constituents of Hedyotis diffusa. METHODS Column chromatographic techniques were used for isolation and purification of chemical constituents of this plant and their structures were identified by spectroscopic analysis. RESULTS Five compounds were isolated and

Evaluation of human neutrophil elastase inhibitory effect of iridoid glycosides from Hedyotis diffusa.

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Ielogoties Reģistrēties

Five iridoid glycosides were isolated from the MeOH extract of Hedyotis diffusa, and their structures were elucidated as E-6-O-p-methoxycinnamoyl scandoside methyl ester (1), Z-6-O-p-methoxycinnamoyl scandoside methyl ester (2), E-6-O-p-feruloyl scandoside methyl ester (3), E-6-O-p-coumaroyl

Three new iridoid glucosides from Hedyotis diffusa.

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Ielogoties Reģistrēties

Three new iridoid glucosides, 6-O-p-coumaroyl, 6-O-p-methoxycinnamoyl and 6-O-feruloyl ester of scandoside methyl ester, have been isolated along with a known glucoside, asperuloside from the aerial parts of Hedyotis diffusa Willd.

Application of HPLC-Q/orbitrap MS in the detection and identification of anticancer constituents in ethyl acetate components from Hedyotis diffusa

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Ielogoties Reģistrēties

A feasible analytical method based on high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry (HPLC-Q/orbitrap MS) has been established for the identification and characterization of anticancer constituents in ethyl acetate components from

[Simultaneous determination of four components in Hedyotis diffusa oral solution by reversed-phase HPLC].

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Ielogoties Reģistrēties

OBJECTIVE A new method for simultaneous determination of four methyl-3, 4-dihydroxybenzoate ( I ), P-coumaric acid (II), ferulaic acid (III) and E-6-O-P-coumaroyl scandoside methyl ester (IV) in Hedyotis diffusa oral solution by reversed-phase HPLC was developed. METHODS The separation was performed

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