Concise stereoselective synthesis of (2S,4R)-4-hydroxyproline from (S)-O-benzylglycidol a novel cyclization

Abstract
An efficient stereoselective route to (2S,4R)-4-hydroxyproline from (S)-O-benzylglycidol has been established via a novel iodine-mediated cyclization of the N-benzoyl-γ,δ-unsaturated amide.

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