Fenofibric acid salt of berberine and analogue thereof, crystal form, preparation method and applications thereof
A technology of fenofibric acid and berberine, which is applied in the field of fenofibric acid salt crystalline salt and crystalline salt, can solve problems such as inability to screen salts, achieve the effect of avoiding harmful effects and improving pharmaceutical properties
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Embodiment 1
[0202] Exemplary preparation and characterization of berberine fenofibrate salt (A crystalline salt)
[0203] 74.2 mg (0.20 mmol) of berberine hydrochloride was suspended in 1.0 ml of MeOH, and then 2.0 ml of 0.1 N NaOH (0.2 mmol) was added to obtain a suspension. To the suspension was added 64.1 mg (0.20 mmol) of fenofibric acid. After stirring the suspension at 60°C for 30 minutes, a clear orange solution was obtained. The solution was cooled to room temperature, and yellow fenofibrate berberine salt (crystal form A salt) was precipitated from the orange solution. It is separated by filtration, washed with water, and then dried in air. Obtained 83.2 mg of crystalline form A salt (60% yield). Such as figure 1 As shown, the salt of crystal form A is in D 2 In O 1 The H-NMR spectrum indicated that, for the A crystal salt, the molar ratio of berberine and fenofibric acid was about 1:1. 1 H NMR (300MHz, DMSO) 1.41 (s, 6H), 3.21 (t, J = 6.0 Hz, 2H), 4.07 (s, 3H), 4.10 (s, 3H), 4.9...
Embodiment 2
[0209] Exemplary preparation of berberine fenofibrate salt (crystal B salt):
[0210] 100 mg of berberine fenofibrate (crystal form A salt, other amorphous or crystalline forms) was suspended in 1.0 ml of water to produce a suspension. The suspension was then stirred at room temperature for 1 day. The solid was collected by filtration and dried in air. 75 mg of yellow crystalline material of the B crystal form salt was obtained. (Yield: 75%).
[0211] The crystal form B salt was analyzed by XRPD, and the results are listed in Table 2. See XRPD of B crystal salt Figure 4 .
[0212] Table 2 XRPD key peaks of B crystal salt
[0213] Angle(2θ±0.2°) Intensity(%) 8.0100.0 15.979.1 17.367.0 12.455.0 6.252.9 20.949.2 25.541.8 19.834.8 18.730.0 12.928.9
[0214] The characteristic of Type B salt is that when measured with CuKα radiation, at least one of the following 2θ±0.2° values will be displayed: 6.2, 12.4 and 20.9°.
[0215] The type B salt was also analyzed by thermal technique...
Embodiment 3
[0217] Exemplary preparation of berberine fenofibrate salt (C crystalline salt):
[0218] 318.2 mg of fenofibric acid (1.0 mmol) was suspended in 5.0 ml of water, and 1.0 ml of 1N NaOH aqueous solution was added to obtain a clear and colorless solution. 384.7 mg of berberine hemisulfate (1.0 mmol) was dissolved in 10.0 ml of water to obtain a clear orange solution. The colorless solution of fenofibric acid and NaOH was slowly added to the orange solution of berberine, and a yellow solid was precipitated first, and then a double layer solution was formed. 5.0 ml of ethanol was added to the bilayer solution, the yellow crystalline form of Celite solid began to precipitate out, and the slurry was stirred at room temperature for 1 day. 530 mg of yellow crystalline substance of type C salt was obtained (yield: 82%).
[0219] Analyze crystal form C salt by XRPD. For the XRPD pattern of crystal form C, see Image 6 , The results are listed in Table 3.
[0220] Table 3 Key XRPD peaks of C...
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