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:
Jan. 26, 2021
Filed:
Apr. 30, 2020
Shanghai Haiyan Pharmaceutical Technology Co., Ltd., Shanghai, CN;
Yangtze River Pharmaceutical Group Co., Ltd., Taizhou, CN;
Songliang Wu, Shanghai, CN;
Zhi Luo, Shanghai, CN;
Yuan Chen, Shanghai, CN;
Yuhe Wang, Shanghai, CN;
Dakun Qin, Shanghai, CN;
Xiaolin Li, Shanghai, CN;
Zheng Wang, Shanghai, CN;
Weidong Li, Shanghai, CN;
Haiying He, Shanghai, CN;
SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., Shanghai, CN;
YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD., Jiangsu, CN;
Abstract
Disclosed is a preparation method of an orexin receptor antagonist compound 5-3. Crystalline forms I-IV of an orexin receptor antagonist compound 5-3 are provided. Also provided are processes of preparing crystalline forms of the orexin receptor antagonist compound 5-3, as well as methods of using the crystalline forms I-IV for treating an orexin-related disease.