申请人:CHENGDU BRILLIANT PHARMACEUTICAL CO., LTD.
公开号:US20190308981A1
公开(公告)日:2019-10-10
The present invention provides a hydrobromide of methyl 3-[(4s)-8-bromo-1-methyl-6-(2-pyridyl)-4H-imidazol[1,2-a][1,4]benzodiazepine-4-yl] propionate and its related crystal forms, preparation method and use thereof. The hydrobromide has excellent solubility (>100 mg/ml), which is significantly superior to other currently commercially available or developed salt products, and is especially suitable for the preparation of injections, has relatively good stability in various crystal forms, and has good practical value and market prospects.
本发明提供了甲基3-[(4s)-8-溴-1-甲基-6-(2-吡啶基)-4H-咪唑[1,2-a][1,4]苯并二氮平-4-基]丙酸盐酸盐及其相关晶体形式、制备方法和用途。该盐酸盐具有优异的溶解度(>100 mg/ml),明显优于其他目前商业化或开发的盐类产品,特别适用于注射剂的制备,在各种晶体形式中具有相对良好的稳定性,并具有良好的实用价值和市场前景。