Journal
ORGANIC LETTERS
Volume 19, Issue 6, Pages 1454-1457Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b00417
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The development of a rapid, one-pot synthesis of diazepinones with simple reagents is described. N-Carboxyanhydrides (NCAs) are employed as amino acid building blocks that react with o-ketoanilines sequentially as electrophiles and nucleophiles to form diazepinones with water and carbon dioxide as byproducts. Notably, these reactions enable the coupling of stereodefined amino acid derived NCAs without racemization. This method is demonstrated by an improved synthesis of a key intermediate toward a bromodomain and extra-terminal (BET) bromodomain inihibitor.
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