US 11,912,690 B2
Acid addition salts of benzimidazole derivative
Eun Sun Kim, Gangwon-do (KR); Min Kyoung Lee, Seoul (KR); Sung Ah Lee, Gyeonggi-do (KR); Kwang Do Choi, Gyeonggi-do (KR); Jae Sun Kim, Gyeonggi-do (KR); and Hyung Chul Yoo, Gyeonggi-do (KR)
Assigned to HK INNO.N CORPORATION, Chungcheongbuk-do (KR)
Filed by HK INNO.N CORPORATION, Chungcheongbuk-do (KR)
Filed on Nov. 21, 2022, as Appl. No. 17/990,806.
Application 17/990,806 is a continuation of application No. 16/334,427, granted, now 11,535,610, previously published as PCT/KR2017/010332, filed on Sep. 20, 2017.
Claims priority of application No. 10-2016-0120996 (KR), filed on Sep. 21, 2016.
Prior Publication US 2023/0192670 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07D 405/12 (2006.01); C07D 235/06 (2006.01)
CPC C07D 405/12 (2013.01) [C07D 235/06 (2013.01)] 20 Claims
 
1. A pidolate salt of a compound represented by Formula 1, prepared by a process comprising:
a) dissolving a compound represented by Formula 1 and pyroglutamic acid in an organic solvent, thereby creating a solution;
b) concentrating the solution under decompression to precipitate a solid, then adding a co-solvent and stirring; and
c) filtering out and drying the precipitated solid:

OG Complex Work Unit Chemistry