Sophocarpidine, oxymatrine glycyrrhetinic acid double salt, and preparation method and use thereof
A technology of ginseng, licorice, oxybitter, applied in the directions of organic chemistry, pharmaceutical formulations, steroids, etc., can solve the problems of small number of rabbits, no drinking water control, etc., and achieves reduced dosage, good synergy, and high yield. Effect
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Embodiment 1
[0037] Preparation of double salt of matrine and glycyrrhetinic acid
[0038] Mix 24.8g of matrine and 47g of glycyrrhetinic acid (molar ratio 1:1), add 1000ml of methanol, heat to 35°C, stir vigorously until dissolved, leave it overnight, crystallize, filter to obtain 65.3g of white crystals, yield 90.9%.
[0039]The obtained product was recrystallized in methanol, and its melting point was determined to be 270-280°C. By elemental analysis: C75.28 (75.17), H9.79 (9.81), N3.87 (3.90), O11.12 (11.13). The H NMR spectrum is as figure 1 shown.
Embodiment 2
[0041] Preparation of double salt of matrine and glycyrrhetinic acid
[0042] Mix 24.8g of matrine and 47g of glycyrrhetinic acid (molar ratio 1:1), add 800ml of acetone, heat to 50°C, stir until dissolved, let cool, crystallize, and filter with suction to obtain 69.1g of white crystals, yield 96.2%. Recrystallized in methanol to obtain pure product.
Embodiment 3
[0044] Preparation of double salt of matrine and glycyrrhetinic acid
[0045] Mix 49.6g of matrine and 47g of glycyrrhetinic acid (molar ratio 2:1), add 1200ml of ethanol, heat at 35°C until dissolved, let cool, crystallize, and filter to obtain 70.2g of white powder with a yield of 97.8%. Recrystallized in methanol to obtain pure product.
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