N-Methyl β-amino acids are potentially useful amino acid derivatives for incorporation in lead peptide therapeutics. The syntheses of five such compounds are presented. Their synthesis via 6-oxazinanones was low yielding. Alternatively, reductive cleavage of a 5-oxazolidinone gave the N-methyl α-amino acid, which was then homologated via an Arndt–Eistert procedure in high yield to give the N-methyl β-amino acid.
N 甲基 β-氨基酸是一种潜在的有用氨基酸衍生物,可用于先导肽疗法。本文介绍了五种此类化合物的合成。通过 6-oxazinanones 合成这些化合物的产量很低。另一种方法是还原裂解 5-oxazolidinone 得到 N-甲基 α-氨基酸,然后通过 Arndt-Eistert 程序进行高产率同源反应,得到 N-甲基 β-氨基酸。