Crystalline form of JAK kinase inhibitor bisulfate and a preparation method thereof
申请人:Jiangsu Hengrui Medicine Co., Ltd.
公开号:US10023577B2
公开(公告)日:2018-07-17
A crystal form of JAK kinase inhibitor bisulfate and a preparation method thereof are provided. In particular, a type II crystal of (3aR,5s,6aS)—N-(3-methoxyl-1,2,4-thiadiazole-5-yl)-5-(methyl(7H-pyrrolo[2,3-d]pyrimidine-4-yl)amino)hexahydrocyclopenta[c]pyrrole-2(1H)-formamide bisulfate and a preparation method thereof are described. The preparation method includes steps of crystallizing any solid crystal form or amorphous compound of formula (I) in a single organic solvent or a mixed organic solvent to obtain a type II crystal form of the compound of formula (I). The type II crystal form of the compound of formula (I) obtained by the described methods has good crystal stability and chemical stability. In addition, the solvent used for crystallization has low toxicity and residue, which is better suited for use in clinical treatment.
本研究提供了一种 JAK 激酶抑制剂二硫酸盐晶体及其制备方法。特别是描述了(3aR,5s,6aS)-N-(3-甲氧基-1,2,4-噻二唑-5-基)-5-(甲基(7H-吡咯并[2,3-d]嘧啶-4-基)氨基)六氢环戊并[c]吡咯-2(1H)-甲酰胺硫酸盐的 II 型晶体及其制备方法。该制备方法包括以下步骤:在单一有机溶剂或混合有机溶剂中结晶任何固态晶型或无定形的式(I)化合物,以获得式(I)化合物的II型晶型。通过所述方法获得的式 (I) 化合物 II 型晶体具有良好的晶体稳定性和化学稳定性。此外,用于结晶的溶剂毒性低、残留少,更适合用于临床治疗。