Novel lloperidone pharmaceutical co-crystal and preparation method thereof
A technology of iloperidone and drugs, applied in the field of new iloperidone drug co-crystal and its preparation, to achieve the effect of improving bioavailability and stability
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[0028] Example 1:
[0029] Synthesize a co-crystal using imperidone and 2,3-dihydroxybenzoic acid:
[0030] Weighing:
[0031] The reactants are fed in a mass ratio of iloperidone: 2,3-dihydroxybenzoic acid = 1:1. Use an analytical balance to accurately weigh out 20.00 mg of iloperidone and 20.00 mg of 2,3-dihydroxybenzoic acid.
[0032] Dissolution of API:
[0033] Use a 5ml pipette to accurately measure 5ml ethanol into a 25ml single-neck round bottom flask.
[0034] Reflux-steam heating method:
[0035] Put the magnetic stirrer into the round-bottomed flask with the uniformly dissolved medicine after weighing, set up the reflux device, reflux time is 2h, reflux temperature 90℃, turn on the magnetic stirrer and condensed water.
[0036] After refluxing, the reaction solution was filtered, and the filtrate was placed in a 25ml transparent glass vial. After the solvent was slowly volatilized for 6 hours, transparent massive crystals were formed. The weight of the obtained eutectic was 0.0...
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