作者:Marta Velázquez、Saúl Alberca、Javier Iglesias-Sigüenza、Rosario Fernández、José M. Lassaletta、David Monge
DOI:10.1039/d0cc02478c
日期:——
pyridine-hydrazone ligands have allowed the asymmetric 1,2-addition of aryl boronic acids to N-carbamoyl (Cbz and Fmoc) protected glyoxylate-derived hydrazones, yielding α-aryl α-hydrazino esters/amides in high enantioselectivities. Subsequent removal of the carbamoyl moiety affords key building blocks en route to hydrazinopeptides, N-aminopeptides and peptidomimetics thereof.
由Pd(TFA)2和
吡啶-
配体组合产生的催化剂使芳基
硼酸不对称地1,2-加成到N-
氨基甲酰基(Cbz和Fmoc)保护的
乙醛酸酯衍生的azo上,生成α-芳基α-
肼基高对映选择性的酯/酰胺。随后除去
氨基甲酰基部分提供了通往
肼基肽,N-
氨基肽及其拟肽的关键结构单元。