Novel potassium sodium dehydroandrographolide succinate compound and pharmaceutical composition thereof
A technology of Yanhuning and its compounds, which is applied in the field of new Yanhuning compounds and their pharmaceutical compositions, can solve the problems of general medicinal effect of powder injections, increased adverse reactions, and affecting the quality of preparations, so as to achieve superior drug efficacy, Excellent medicinal effect and immunity-enhancing effect
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Embodiment 1
[0047] The preparation of the new Yanhuning compound of embodiment 1
[0048] (1) Dissolve 5g of Chuanhuning in a mixed solution of 17.5ml of water and 2.5ml of absolute ethanol to obtain solution 1;
[0049] (2) Stir and add 0.5mol / L sodium bicarbonate aqueous solution to solution 1 at a rate of 20mL / min at 20°C, adjust the pH to 6.5, then raise the temperature to 25°C at a rate of 0.2°C / min, add activated carbon, and continue Stir the reaction for 1 hour, filter with suction, collect the filtrate, and obtain solution 2;
[0050] (3) Decrease the temperature of solution 2 to 3°C at a rate of 0.2°C / min, stop stirring, let the crystal grow for 5 hours, filter with suction, wash the filter cake with absolute ethanol, and dry at 70°C for 4 hours to obtain Yanhuning compound.
[0051] The characteristic peaks in the X-ray powder diffraction pattern of the Yanhuning compound measured by Cu-Kα rays are 7.3°, 9.6°, 12.0°, 13.4°, 15.9°, 17.5°, 18.0°, 19.8°, 23.4°, 23.8°, 24.6°, 27....
Embodiment 2
[0052] The preparation of the new Yanhuning compound of embodiment 2
[0053] (1) Dissolve 5g of Chuanhuning in a mixed solution of 17.5ml of water and 2.5ml of absolute ethanol to obtain solution 1;
[0054] (2) Stir and add 0.5 mol / L sodium bicarbonate aqueous solution to solution 1 at a rate of 30 mL / min at 20°C, adjust the pH to 7.0, then raise the temperature to 30°C at a rate of 0.3°C / min, add activated carbon, and continue Stir the reaction for 2 hours, filter with suction, collect the filtrate to obtain solution 2;
[0055] (3) Decrease the temperature of solution 2 to 5°C at a rate of 0.3°C / min, stop stirring, let the crystal grow for 6 hours, filter with suction, wash the filter cake with absolute ethanol, and dry at 80°C for 4 hours to obtain Yanhuning compound.
[0056] The X-ray powder diffraction pattern obtained by measuring the Yanhuning compound using Cu-Kα rays is consistent with Example 1, and its melting point is 202°C.
Embodiment 3
[0057] The preparation of the new Yanhuning compound of embodiment 3
[0058] (1) Dissolve 5g of Chuanhuning in a mixed solution of 17.5ml of water and 2.5ml of absolute ethanol to obtain solution 1;
[0059] (2) Stir and add 0.5mol / L sodium bicarbonate aqueous solution to solution 1 at 20°C at a rate of 20mL / min, adjust the pH to 7.0, then raise the temperature to 25°C at a rate of 0.3°C / min, add activated carbon, continue Stir the reaction for 2 hours, filter with suction, collect the filtrate to obtain solution 2;
[0060] (3) Decrease the temperature of solution 2 to 5°C at a rate of 0.2°C / min, stop stirring, let the crystal grow for 5 hours, filter with suction, wash the filter cake with absolute ethanol, and dry at 80°C for 4 hours to obtain Yanhuning compound.
[0061] The X-ray powder diffraction pattern obtained by measuring the Yanhuning compound using Cu-Kα rays is consistent with Example 1, and its melting point is 202°C.
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