Medicinal composition of andrographolide derivative, and preparation method and uses thereof
A technology of andrographolide and composition, which is applied in the field of pharmaceutical composition of andrographolide derivatives and its preparation and application, can solve the problems of poor solubility and stability, and achieve simple and convenient preparation method, high stability, The effect of high productivity
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Embodiment 1
[0050] Take andrographolide, add 3 times the amount of acetic anhydride (66.67%) and glacial acetic acid (33.33%) to dissolve, and slowly add 1.6 times the amount of andrographolide sulfuric acid (37.5%) and glacial acetic acid under stirring (62.5%) mixed solution for sulfonation, and keep the temperature of the reaction solution at 18~20°C, place it for 60 minutes to make sulfonation (16~20°C), add 7 times the amount of 95% ethanol, stir well, concentrate under reduced pressure to form a thick paste , add the same amount of purified water, stir well, adjust the pH to 7.0 with 50% NaOH, add 95% ethanol to make the alcohol content reach more than 85%, let it stand for 12 hours, recover ethanol under reduced pressure, bathe in water until almost no alcohol smell, and then Macroporous adsorption resin, ODS column chromatography separation, gradient elution with water: ethanol, the ratio of water is 90~10%, the ratio of ethanol is 10~90%, the eluate is collected in sections, deter...
Embodiment 2
[0065] Take andrographolide, add 3 times the amount of acetic anhydride (66.67%) and glacial acetic acid (33.33%) to dissolve, and slowly add 1.6 times the amount of andrographolide sulfuric acid (37.5%) and glacial acetic acid under stirring (62.5%) mixed solution for sulfonation, and keep the temperature of the reaction solution at 16~18°C, place it for 40 minutes to make sulfonation (16~18°C), add 7 times the amount of 95% ethanol, stir well, concentrate under reduced pressure to form a thick paste , add the same amount of purified water, stir well, adjust the pH to 7.0 with 50% NaOH, add 95% ethanol to make the alcohol content reach more than 85%, let it stand for 12 hours, recover ethanol under reduced pressure, bathe in water until almost no alcohol smell, and then Macroporous adsorption resin, ODS column chromatography separation, gradient elution with water: ethanol, the ratio of water is 90~10%, the ratio of ethanol is 10~90%, the eluate is collected in sections, deter...
Embodiment 3
[0067] Take andrographolide, add 3.2 times the amount of acetic anhydride (66.67%) and glacial acetic acid (33.33%) to dissolve, and slowly add 1.5 times the amount of andrographolide sulfuric acid (37.5%) and glacial acetic acid under stirring (62.5%) mixed solution for sulfonation, and keep the temperature of the reaction solution at 16~18°C, place it for 50 minutes for sulfonation (18~20°C), add 8 times the amount of 95% ethanol, stir well, concentrate under reduced pressure to form a thick paste , add an equal amount of purified water, stir well, adjust the pH to 6.5 with 30% NaOH, add 95% ethanol to make the alcohol content reach more than 85%, let it stand for 12 hours, recover ethanol under reduced pressure, bathe in water until almost no alcohol smell, and then Macroporous adsorption resin, ODS column chromatography separation, gradient elution with water: ethanol, the ratio of water is 90~10%, the ratio of ethanol is 10~90%, the eluate is collected in sections, determi...
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