Method for purifying cyclovirobuxinum D and preparation thereof
A cycloviral buxicine and purification method technology, applied to medical preparations containing active ingredients, organic chemistry, pharmaceutical formulas, etc., can solve the problems of small toxic and side effects, low effective rate, slow drug effect, etc.
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[0025] The preparation column in the separation and purification process of the present invention should be a silica gel column.
[0026] In the above step 3 of the present invention, the recovered cyclohexane can be used repeatedly, and the time for the sawdust-like boxwood to be soaked in the cyclohexane is more than 2 hours.
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[0028] Take 300kg of boxwood sawdust, then add 30kg of alcohol and ammonia mixture, stir them evenly, and adjust the pH value to 7.5. The purpose of adding alcohol is to destroy the cell structure of boxwood so that the solvent can penetrate into the cells of boxwood. Soak the stirred boxwood in 200kg of cyclohexane, let it stand overnight, then filter out the boxwood sawdust, concentrate and recycle the filtered cyclohexane liquid, place the concentrated dilute paste to crystallize, and recycle Cyclohexane can be applied repeatedly. The above-mentioned crystals were collected by filtration and washed with acetone to obtain about 30 g of Buyangning. To prepare mobile phase, 99.9ml of chloroform and 0.1ml of triethylamine can be used to prepare 100ml of mobile phase, or 99.95ml of n-hexane and 0.05ml of triethylamine can be used to prepare 100ml of mobile phase, or 50ml of chloroform, 49.91ml of Prepare 100ml mobile phase with n-hexane and 0.09ml triethylamine, or prepare 100m...
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