Design, Synthesis, and Application of Enantioselective Coupling Reagent with a Traceless Chiral Auxiliary
摘要:
Stable chiral N-triazinylbrucinium tetrafluoroborate enantioselectively activates racemic carboxylic acids yielding enantiomerically enriched amides, esters, and dipeptides with er from 8:92 to 0.5:99.5. Due to the departure of a chiral auxiliary after the activation of the carboxylic function, all of the subsequent stages of the coupling reaction proceed without any perturbation caused by a chirality discriminator (traceless). Therefore, the advantageous coupling conditions, configuration, and enantiomeric purity of the final product are entirely predictable from the model experiment.
PEPTIDE AMIDE COMPOUND AND PREPARATION METHOD AND MEDICAL USE THEREOF
申请人:Sichuan Haisco Pharmaceutical Co., Ltd.
公开号:EP3656782B1
公开(公告)日:2021-12-22
Design, Synthesis, and Application of Enantioselective Coupling Reagent with a Traceless Chiral Auxiliary
作者:Beata Kolesinska、Zbigniew J. Kaminski
DOI:10.1021/ol802691x
日期:2009.2.5
Stable chiral N-triazinylbrucinium tetrafluoroborate enantioselectively activates racemic carboxylic acids yielding enantiomerically enriched amides, esters, and dipeptides with er from 8:92 to 0.5:99.5. Due to the departure of a chiral auxiliary after the activation of the carboxylic function, all of the subsequent stages of the coupling reaction proceed without any perturbation caused by a chirality discriminator (traceless). Therefore, the advantageous coupling conditions, configuration, and enantiomeric purity of the final product are entirely predictable from the model experiment.