Salt of bile acid derivative, crystal form structure thereof, and preparation method and application of bile acid derivative salt and crystal form structure thereof

A technology of bile acid derivatives and maleate, applied in organic chemical methods, medical preparations containing active ingredients, drug combinations, etc., can solve problems such as inconvenient development, poor solubility, and difficulty in preparation research, and achieve Good solubility and stability, improving cholestasis and reducing portal pressure

Inactive Publication Date: 2021-10-12
XI AN BIOCARE PHARMA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compound has a low melting point and is not suitable for heating or grinding, which brings great difficulties to the research of formulations, and its poor solubility is not conducive to storage and weighing, which brings a lot of inconvenience to the later development

Method used

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  • Salt of bile acid derivative, crystal form structure thereof, and preparation method and application of bile acid derivative salt and crystal form structure thereof
  • Salt of bile acid derivative, crystal form structure thereof, and preparation method and application of bile acid derivative salt and crystal form structure thereof
  • Salt of bile acid derivative, crystal form structure thereof, and preparation method and application of bile acid derivative salt and crystal form structure thereof

Examples

Experimental program
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preparation example Construction

[0039] The present invention also provides a method for preparing a salt of a bile acid derivative, comprising:

[0040] The compound represented by formula (I), the first solvent and the acid are mixed and reacted to obtain the salt of the bile acid derivative

[0041] The acid is an inorganic acid or an organic acid;

[0042] The inorganic acid is selected from hydrochloric acid: the organic acid is selected from methanesulfonic acid, oxalic acid, p-toluenesulfonic acid, L-tartaric acid, fumaric acid, maleic acid, preferably methanesulfonic acid, p-toluenesulfonic acid;

[0043] The first solvent is methanol, ethanol, isopropanol, isobutanol, 2-butanone, tetrahydrofuran, dichloromethane, acetonitrile, methyl tert-butyl ether, acetone, ethyl acetate, methyl formate, acetic acid One or more of isopropyl ester and n-hexane.

[0044] According to the present invention, the present invention mixes and reacts the compound represented by the formula (I), the first solvent and the a...

Embodiment 1

[0113] Example 1: Synthesis of Compound 1

[0114] The off-white solid compound 1 was prepared by the method described in Example 1 of patent CN201810930184.X.

[0115] The solid was analyzed by polarized light microscope (PLM), and there was no birefringence phenomenon, and its DSC-TGA spectrum was as follows figure 1 As shown, the onset temperatures of the two endothermic peaks of DSC are located at 41.6°C and 72.6°C, respectively. TGA showed a weight loss of 6.2% before 100°C. DVS shows that under humidity conditions of 10% to 90%, moisture absorption is 1.933% to 7.0146%. Compound 1 has a low melting point and is easily hygroscopic, which is not conducive to preparation. XRPD showed that the solid was in an amorphous state, and the compound of Example 1 had a low melting point, which was unfavorable for formulation.

Embodiment 2

[0116] Example 2 Preparation of Compound 1 Hydrochloride

[0117] At room temperature, the compound of Example 1 (1.0eq.) was added to 40-60μL MeOH with stirring to dissolve it, then 1.5μL hydrochloric acid (1.0eq.) was added and stirred, no solid was precipitated, and then 100μL ACN was added, no solid was precipitated. . After the reaction flask was capped, it was slowly volatilized at room temperature to obtain a solid, and the obtained solid sample was detected. XRPD showed that the solid had no obvious diffraction peak and was in amorphous form.

[0118] UPLC-MS: (m / z): 590.3610 [M+H] + ;

[0119] 1 H-NMR (DMSO-d 6 , 400MHz, ppm): 8.98 (d, J=6.8Hz, 2H), 8.03 (d, J=6.8Hz, 2H), 6.02 (t, J=2.8Hz, 1H), 4.59 (m, 1H), 4.47 (m, 1H), 4.16 (m, 2H), 3.50 (brs, 1H), 3.14 (m, 1H), 2.42 (m, 1H), 2.16 (m, 1H), 1.91 (m, 1H), 1.81 ( m, 2H), 1.77 (m, 1H), 1.76 (m, 1H), 1.72 (m, 1H), 1.70 (m, 1H), 1.53 (m, 1H), 1.50 (m, 1H), 1.47 (m , 1H), 1.45(m, 1H), 1.42(m, 2H), 1.39(m, 1H), 1.3...

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Abstract

The invention provides a salt of a bile acid derivative, a crystal form of the salt and a preparation method and application of the salt and the crystal form. The salt, the crystal form and a composition of the salt and the crystal form can improve cholestasis, reduce portal pressure, improve liver functions and improve liver functions, and can be used for preparing medicines for treating or relieving chronic liver diseases, metabolic diseases or portal hypertension and related diseases thereof.

Description

technical field [0001] The invention relates to the field of medicinal chemistry, in particular to a salt of a bile acid derivative, its crystal structure, and its preparation method and application. Background technique [0002] Bile acids have a variety of physiological functions, not only play an important role in the absorption, transport and distribution of fat and fat-soluble vitamins, but also act as a signaling molecule to activate nuclear receptors and then regulate the metabolism of bile acids and cholesterol. Enterohepatic circulation of bile acids is an important regulatory mechanism regulating the rate of bile acid synthesis. Bile acids are synthesized from the liver into the gallbladder, secreted into the small intestine, reabsorbed in the ileum and transported back to the liver through the portal circulation. [0003] Cholestasis mainly occurs in patients with middle and late pregnancy, liver fibrosis, liver cirrhosis and bile duct obstruction. Ursodesoxycho...

Claims

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Application Information

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IPC IPC(8): C07J51/00A61K31/675A61P1/16A61P9/12A61P3/06
CPCC07J51/00A61P1/16A61P3/06A61P9/12C07B2200/13A61K31/675C07J43/003
Inventor 不公告发明人
Owner XI AN BIOCARE PHARMA LTD
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