Functionalization of N,N′- disubstituted alanylglycine anhydrides under radical conditions is described. The radical (7), generated ( i ) from reactions of N,N'- disubstituted alanylglycine anhydrides with N- bromosuccinimide , and (ii) from related bromo compounds by reaction with tributyltin deuteride , undergoes carbon-bromine and carbon-deuterium bond formation with moderate to high diastereoselectivities depending on the N- substituents present.
描述了在自由基条件下对N,N′-二取代丙氨酰甘氨酸酐进行官能化的过程。自由基(7)是通过N,N'-二取代丙氨酰甘氨酸酐与N-溴代琥珀酰亚胺反应生成,以及通过与三丁基锡氘反应而产生的,根据N-取代基的不同,会以中等到高的对映选择性进行碳-溴和碳-氘键的形成。