[EN] PROCESS FOR MAKING N-SULFINYL a-AMINO AMIDES<br/>[FR] PROCÉDÉ DE FABRICATION DE N-SULFINYL &Agr;-AMINO AMIDES
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2014081558A1
公开(公告)日:2014-05-30
Disclosed is a process for making diastereomeric N-sulfinyl α-amino amides by reaction of chiral sulfinimines with formamides and lithium diisopropylamide. The process of the invention provides the N-sulfinyl α-amino amides in high yields and with high diastereoselectivity.
Disclosed is a process for making diastereomeric N-sulfinyl α-amino amides by reaction of chiral sulfinimines with formamides and lithium diisopropylamide. The process of the invention provides the N-sulfinyl α-amino amides in high yields and with high diastereoselectivity.
US9079832B2
申请人:——
公开号:US9079832B2
公开(公告)日:2015-07-14
Carbamoyl Anion Addition to <i>N</i>-Sulfinyl Imines: Highly Diastereoselective Synthesis of α-Amino Amides
作者:Jonathan T. Reeves、Zhulin Tan、Melissa A. Herbage、Zhengxu S. Han、Maurice A. Marsini、Zhibin Li、Guisheng Li、Yibo Xu、Keith R. Fandrick、Nina C. Gonnella、Scot Campbell、Shengli Ma、Nelu Grinberg、Heewon Lee、Bruce Z. Lu、Chris H. Senanayake
DOI:10.1021/ja402647m
日期:2013.4.17
Carbamoyl anions, generated from N,N-disubstituted formamides and lithium diisopropylamide, add with high diastereoselectivity to chiral N-sulfinyl aldimines and ketimines to provide α-amino amides. The methodology enables the direct introduction of a carbonylgroup without the requirement of unmasking steps as with other nucleophiles. The products may be converted to α-amino esters or 1,2-diamines