Effective component of Clematis chinensis and preparation and use thereof
An effective component, the technology of Clematis, is applied in the field of traditional Chinese medicine extracts for the treatment of tumor diseases, and can solve problems involving normal cells and side effects
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Embodiment 1
[0088] The preparation of the effective component of embodiment 1 Clematis clematis
[0089] Take 250 g of Clematis clematis, crush it, add ethyl acetate and ethanol (1:1), heat to reflux for 1 hour, extract twice, and combine the filtrates to obtain the extract. The extract is concentrated into extract to obtain 8.8g, 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 1.6 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 acetonitrile (B), and the gradient e...
Embodiment 2
[0092] The analysis of embodiment 2 Clematis effective components
[0093] The HPLC-ELSD joint analysis to the effective component of Clematis clematis of embodiment 1
[0094] 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% 0.2% glaci...
Embodiment 3
[0097] Embodiment 3 Clematis clematis active ingredient preparation
[0098] Take 0.5 g of the effective components of Clematis in Example 1 and mix them evenly 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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