Effective component of Spatholobus stem and preparation and use thereof
An effective component, the technology of Scutellaria chinensis, which is applied in the field of traditional Chinese medicine extracts for the treatment of tumor diseases, can solve the problems of involving normal cells and side effects, etc.
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Embodiment 1
[0125] The preparation of embodiment 1 Caulis Spatholobus effective component
[0126] Take 250g of the medicinal material of Mildew Spatholobus, pulverize it, add ethyl acetate and ethanol (1:1), heat and reflux for 1 hour, extract twice, and combine the filtrates to obtain the extract. The extract is concentrated into extract to obtain 17.1g, the extract and silica gel are mixed as a sample, and the normal phase silica gel column is used for separation, at first using sherwood oil and ethyl acetate (50: 1) as mobile phase to obtain eluent I, Then, chloroform and methanol (10:1) were used as the mobile phase to obtain the eluent II, which was concentrated and dried to obtain 2.8 g of the sample. The separation of the resulting sample was continued by preparative liquid chromatography. Separation conditions for preparative chromatography: the chromatographic column is an Agient preparative column (Zorbax SB-C 18 ; 21.2mm × 250mm), the mobile phase is water (A) and acetonitri...
Embodiment 2
[0130] The analysis of embodiment 2 Caulis Spatholobus active components
[0131] The HPLC-ELSD joint analysis to the effective component of the Caulis Spatholobus of embodiment 1
[0132] Chromatographic conditions Chromatographic column Agilent Zorbax SB-C18 column (4.6mm × 150mm, 5 μm); using gradient elution, mobile phase A is 0.2% glacial acetic acid aqueous solution, mobile phase B is acetonitrile solution containing 0.2% glacial acetic acid; gradient elution The procedure is as follows: at 0 minutes, mobile phase A is 90% 0.2% glacial acetic acid aqueous solution, mobile phase B is 10% 0.2% glacial acetic acid in acetonitrile solution; at 10 minutes, mobile phase A is 50% 0.2% glacial acetic acid Aqueous solution, mobile phase B is 50% 0.2% glacial acetic acid acetonitrile solution; 30 minutes, mobile phase A is 5% 0.2% glacial acetic acid aqueous solution, mobile phase B is 95% 0.2% glacial acetic acid acetonitrile solution; 35 In minutes, the mobile phase A was 5...
Embodiment 3
[0135] Embodiment 3 Caulis Spatholobus active component preparation
[0136] Mix 0.5 g of the effective components of Millet Spatholobus in Example 1 with 10.5 g of polyethylene glycol-6000, heat and melt, and then transfer the material to drip irrigation, and drop the drug solution into liquid paraffin at 6-8°C. Degreasing, made 400 dropping pills.
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