Radical Multicomponent Carboamination of [1.1.1]Propellane
2017
Three-dimensional, small-ring scaffolds are very important in modern drug discovery to expand the available drug-like
chemical spaceand to optimize drug candidates. Among them, bicyclo[1.1.1]
pentane(BCP) is regarded as a high-value
bioisosterefor a phenyl ring or tert-butyl group; it provides an option to
generate drug-like molecules with good passive permeability, high aqueous solubility, and improved metabolic stability, though the lack of methodology to functionalize BCP remains a significant challenge. Here we present an efficient method, developed with the aid of density functional theory calculations, for the synthesis of multifunctionalized BCP derivatives by means of a radical multicomponent carboamination of [1.1.1]
propellane. This reaction features mild conditions, one-pot operation, and gram-scale synthetic capability, and opens up a unique and highly efficient route for the synthesis of multifunctionalized BCP derivatives, including synthetically useful 3-substituted BCP-amines.
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