Invention Grant
- Patent Title: Intermediates for optically active piperidine derivatives and preparation methods thereof
-
Application No.: US17571345Application Date: 2022-01-07
-
Publication No.: US11780810B2Publication Date: 2023-10-10
- Inventor: Jae Hong Kweon , Eun Sun Kim , Hyuk Woo Lee , Dong Hyun Ko , Chae Young Ryu , Kwang Do Choi , SeungPyeong Heo
- Applicant: HK inno.N Corporation
- Applicant Address: KR Seoul
- Assignee: HK inno.N Corporation
- Current Assignee: HK inno.N Corporation
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- Priority: KR 20170169227 2017.12.11
- The original application number of the division: US16771463
- Main IPC: C07C69/76
- IPC: C07C69/76 ; C07D211/74 ; B01J21/18 ; B01J23/44
Abstract:
A preparation method according to the present invention makes it possible to industrially produce large amounts of highly pure optically active tert-butyl 3-methyl-4-oxopiperidine-1-carboxylate in high yield by use of commercially available reagents and solvents. In addition, the use of novel intermediates according to the present invention makes it possible to produce highly pure optically active tert-butyl 3-methyl-4-oxopiperidine-1-carboxylate in high yield.
Public/Granted literature
- US20220127230A1 Intermediates for Optically Active Piperidine Derivatives and Preparation Methods Thereof Public/Granted day:2022-04-28
Information query
