Hydroxyethyl sulfonate of cyclin-dependent protein kinase inhibitor, crystalline form thereof and preparation method therefor
申请人:Jiangsu Hengrui Medicine Co., Ltd.
公开号:US10030018B2
公开(公告)日:2018-07-24
Provided are a hydroxyethyl sulfonate of a cyclin-dependent protein kinase inhibitor, a crystalline form thereof and a preparation method therefor. Specifically, 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(piperidin-4-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one hydroxyethyl sulfonate (compound of formula (I)), a crystal form I thereof and a preparation method therefor are provided. Crystal form I of the compound of formula (I) has good chemical and crystalline stability, low toxicity, and low residual crystallization solvent. Therefore, the crystal form I can be used in improved clinical therapy.
本发明提供了一种细胞周期蛋白依赖性蛋白激酶抑制剂的羟乙基磺酸盐、其结晶形式及其制备方法。具体而言,提供了 6-乙酰基-8-环戊基-5-甲基-2-((5-(哌啶-4-基)吡啶-2-基)氨基)吡啶并[2,3-d]嘧啶-7(8H)-酮羟乙基磺酸盐(式(I)化合物)、其晶体形式 I 及其制备方法。式(I)化合物的晶体形式 I 具有良好的化学和结晶稳定性、低毒性和低残留结晶溶剂。因此,该晶体形式 I 可用于改善临床治疗。