Effective component of selfheal and preparation and use thereof
An effective component, the technology of Prunella vulgaris, is applied in the field of traditional Chinese medicine extracts for the treatment of tumor diseases, and can solve problems such as side effects and involvement of normal cells
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Embodiment 1
[0141] Example 1 Preparation of effective components of Prunella vulgaris
[0142] Take 250 g of Prunella vulgaris herbal material, pulverize it, add ethyl acetate and ethanol (1:1), heat to reflux for 1 hour, extract twice, and combine the filtrate to obtain the extract. The extract was concentrated into an extract to obtain 16.6g. The extract and silica gel were mixed and separated by a normal phase silica gel column. First, petroleum ether and ethyl acetate (50:1) were used as mobile phases to obtain eluent I. Then, chloroform and methanol (10:1) were changed as mobile phases to obtain eluent II, which was concentrated and dried to obtain 5.0 g of sample. Use preparative liquid chromatography to continue to separate the obtained sample. Separation conditions of preparative chromatography: chromatographic column is Agient preparative column (Zorbax SB-C 18 ; 21.2mm×250mm), the mobile phase is water (A) and acetonitrile (B), the gradient elution procedure is as follows:
[0143] ...
Embodiment 2
[0145] Example 2 HPLC-ELSD analysis of effective components of Prunella vulgaris
[0146] Chromatographic conditions Chromatographic column Agilent Zorbax SB-C18 column (4.6mm×150mm, 5μm); using gradient elution, mobile phase A phase is 0.2% glacial acetic acid aqueous solution, mobile phase B phase 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 in water, mobile phase B is 10% 0.2% glacial acetic acid in acetonitrile; at 10 minutes, mobile phase A is 50% 0.2% glacial acetic acid The aqueous solution and mobile phase B are 50% 0.2% glacial acetic acid in acetonitrile; at 30 minutes, mobile phase A is 5% 0.2% glacial acetic acid in water, and mobile phase B is 95% 0.2% glacial acetic acid in acetonitrile; 35 At minutes, the mobile phase A is 5% 0.2% glacial acetic acid aqueous solution, and the mobile phase B is 95% 0.2% glacial acetic acid in acetonitrile. So...
Embodiment 3
[0149] Example 3 Prunella vulgaris effective component preparation
[0150] Take the effective component 1 or component 2 of Prunella vulgaris in Example 1, mix 0.5g and 10.5g polyethylene glycol-6000 uniformly, heat and melt, and transfer the material to drip irrigation, and the medicine drops to 6-8. In liquid paraffin at ℃, the oil was removed to prepare 400 drop pills.
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