4-Formylazetidin-2-ones, Synthonfor the Facile Synthesis of Enantiopure 4-Aminopiperidin-2-ones
作者:Abdul Rakeeb Deshmukh、Devanathan Krishnaswamy、Vidyesh V. Govande
DOI:10.1055/s-2003-40979
日期:——
Enantiopure 4-formylazetidin-2-ones 1a-d have been used as building blocks forthe synthesis of 4-aminopiperidin-2-ones 6a-d in 28-39% overall yields.The synthesis involves ring expansion of azetidinone 4a-d via methanolysis followed by a reductivecyclization of the C-4 nitroethyl side chain with an ester group.