Diastereoselective Synthesis of Lincosamine Precursors
作者:Fiona Serra、Philippe Coutrot、Mélanie Estève-Quelquejeu、Patrick Herson、Tomasz K. Olszewski、Claude Grison
DOI:10.1002/ejoc.201001740
日期:2011.4
strategy is a three-step synthesis that is based on the treatment of the β-iodo-α-keto ester with dibenzylamine. Subsequent reduction of the β-amino-α-keto ester provides the pure D-erythro, L -threo, L-erythro, and D-threo aminodiols after chromatographic purification. Further classical transformations afford the N-acetyl derivatives, which are key precursors of the lincosamine diastereomers.