SYNTHETIC PROCESSES FOR THE PRODUCTION OF 1-((3S,4R)-4-(2,6-DIFLUORO-4-METHOXYPHENYL)-2-OXOPYRROLIDIN-3-YL)-3-PHENYLUREA
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20210395200A1
公开(公告)日:2021-12-23
Highly efficient processes are provided for preparing key intermediates in the synthesis of compounds (I). The process are broadly applicable and can provide selected components having a variety of substituents. Some intermediates are claimed.
Terminal Aziridines by α-Deprotonation/Electrophile Trapping of N-Protected Aziridine
作者:David M. Hodgson、Steven P. Hughes、Amber L. Thompson、Tom D. Heightman
DOI:10.1021/ol801224g
日期:2008.8.21
N-tert-Butylsulfonyl and N-tert-butylsulfinyl aziridine undergo alpha-lithiation/electrophile trapping providing a newentry to terminal aziridines. With N-tert-butylsulfinyl aziridine complete asymmetric induction is observed alpha to nitrogen.