The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2018
Filed:
Sep. 09, 2015
Jiangsu Hengrui Medicine Co., Ltd., Lianyungang, Jiangsu, CN;
Piaoyang Sun, Jiangsu, CN;
Guaili Wu, Jiangsu, CN;
Xiaohui Gao, Jiangsu, CN;
Yongjiang Chen, Jiangsu, CN;
Lingjia Shen, Jiangsu, CN;
Jiangsu Hengrui Medicine Co., Ltd., Lianyungang, Jiangsu, CN;
Abstract
A crystal form I of a Janus Kinase (JAK) inhibitor (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 of formula (I) is provided. Also provided is a method of preparing the crystal form I of the JAK inhibitor of formula (I). The preparation method includes crystallizing any crystal form or amorphous compound solid of formula (I) in a single organic solvent to obtain the form I crystal. The crystal form I has excellent crystal stability and chemical stability. Additionally, the crystal solvent used to produce the crystal form I has low toxicity and a relatively low content of residual solvent, making the compound better suited for clinical treatment.