One-Pot Construction of Diverse β-Lactam Scaffolds via the Green Oxidation of Amines and Its Application to the Diastereoselective Synthesis of β-Amino Acids
作者:Yuki Yamamoto、Shintaro Kodama、Riku Nishimura、Akihiro Nomoto、Michio Ueshima、Akiya Ogawa
DOI:10.1021/acs.joc.1c01128
日期:2021.9.3
in the presence of a base, afforded a series of new β-lactam derivatives with excellent cis selectivity, which could not be synthesized and isolated by previously reported methods. Thus, this one-pot protocol will be one of the powerful methods applicable to the synthesis of various potential drug candidates and functional molecules. Furthermore, the subsequent hydrolysis of these β-lactams successfully
在这项研究中,通过 4,6-二羟基水杨酸催化的胺有机催化氧化为亚胺,成功实现了 β-内酰胺支架的简单一锅法构建。尽管一些亚胺非常不稳定且难以通过常规方法分离,但本文所述的胺的有机催化氧化,然后在碱存在下与酰氯直接反应,提供了一系列具有优异顺式反应的新型 β-内酰胺衍生物。以前报道的方法无法合成和分离的选择性。因此,这种一锅法将成为适用于各种潜在候选药物和功能分子合成的强大方法之一。此外,这些 β-内酰胺的后续水解成功地以高达 99% 的产率提供了几乎单一的非对映异构体形式的相应 β-氨基酸。