US Patent 11155537 Crystal of benzofuran derivative free base and preparation method
Patent 11155537 was granted and assigned to Jiangsu Hengrui Medicine on October, 2021 by the United States Patent and Trademark Office.
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Patent abstract
This application describes a crystal of a benzofuran derivative free base and a preparation method. Specifically, this application describes crystal A, crystal B, crystal C, and crystal D of N-((4,6-dimethyl-2-carbonyl-1,2-dihydropyridin-3-yl)methyl)-5-ethyl-6-(ethyl(tetrahydro-2H-pyran)4-yl)amino)-2-(piperidin-1-ylmethyl)benzofuran-4-carboxamide and a preparation method for the crystals. The crystals of the compound of formula (I) have great crystal stability and provides improved uses in clinical treatment.
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Patent Inventor Names
Chao Xu0
Likun Wang0
Qiyun Shao0
Zhenxing Du0
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Patent Applicant
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Patent Jurisdiction
Patent Number
111555370
Date of Patent
October 26, 2021
0Patent Application Number
201805170
Date Filed
May 17, 2018
0Official Website
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US Patent 11155537 Crystal of benzofuran derivative free base and preparation method
Infobox
Is a
Patent applicant
Current assignee
Patent jurisdiction
Patent number
11155537
Date of patent
October 26, 2021
Patent application number
20180517
Date Filed
May 17, 2018
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