喻红梅, 房政钰, 邢逞, 胡堃, 龚宁波, 吕扬. 替格瑞洛新盐型的制备、表征及溶解性能研究J. 药学学报, 2021,56(2): 570-576. doi: 10.16438/j.0513-4870.2020-1470
引用本文: 喻红梅, 房政钰, 邢逞, 胡堃, 龚宁波, 吕扬. 替格瑞洛新盐型的制备、表征及溶解性能研究J. 药学学报, 2021,56(2): 570-576. doi: 10.16438/j.0513-4870.2020-1470
YU Hong-mei, FANG Zheng-yu, XING Cheng, HU Kun, GONG Ning-bo, L� Yang. Preparation, characterization and improved solubility of ticagrelor saltsJ. Acta Pharmaceutica Sinica, 2021,56(2): 570-576. doi: 10.16438/j.0513-4870.2020-1470
Citation: YU Hong-mei, FANG Zheng-yu, XING Cheng, HU Kun, GONG Ning-bo, L� Yang. Preparation, characterization and improved solubility of ticagrelor saltsJ. Acta Pharmaceutica Sinica, 2021,56(2): 570-576. doi: 10.16438/j.0513-4870.2020-1470

替格瑞洛新盐型的制备、表征及溶解性能研究

Preparation, characterization and improved solubility of ticagrelor salts

  • 摘要: 为改善替格瑞洛溶解性差的问题,采用悬浮液法和加液研磨法制备得到替格瑞洛-3,5-二硝基苯甲酸、替格瑞洛-吡嗪酰胺、替格瑞洛-D-脯氨酸、替格瑞洛-L-脯氨酸4种新盐型物质。利用粉末X-射线衍射法、红外光谱法、差示扫描量热法、核磁共振波谱法和元素分析技术对盐进行表征,分析各分子间盐键等作用力。使用高效液相色谱法测定原料药和盐在pH 1.2和pH 6.8缓冲溶液中的平衡溶解度。替格瑞洛与3,5-二硝基苯甲酸、吡嗪酰胺、D-脯氨酸、L-脯氨酸均以1:1比例成盐,除替格瑞洛-D-脯氨酸外,其余3种盐型物质在pH 1.2缓冲溶液中平衡溶解度均有所提高,其中,替格瑞洛-3,5-二硝基苯甲酸的溶解度与原料药相比提高了1.7倍。该成盐技术方法简单,能够有效提高替格瑞洛的溶解度。

     

    Abstract: Four salts of ticagrelor, ticagrelor-3,5-dinitrobenzoic acid, ticagrelor-pyrazinamide, ticagrelor-D-proline and ticagrelor-L-proline were prepared by solvent suspension and liquid-assisted grinding to improve the solubility of ticagrelor. The compounds were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, differential scanning calorimetry, nuclear magnetic resonance spectroscopy, elemental analysis, and the intermolecular salt-bonding forces were analyzed. The equilibrium solubility of salts and pure drug in hydrochloride buffer pH 1.2 and phosphate buffer pH 6.8 were measured by high-performance liquid chromatography. Ticagrelor was salted with 3,5-dinitrobenzoic acid, pyrazinamide, D-proline, L-proline all in a stoichiometric ratio of 1:1; with the exception of ticagrelor-D-proline, the solubility of the other three salts provided significantly improved solubility in hydrochloride buffer pH 1.2, and the equilibrium solubility of ticagrelor-3,5-dinitrobenzoic acid was increased by approximately 1.7 folds as compared to pure drug. Salt-forming technology is convenient and can improve the solubility of ticagrelor.

     

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