A Practical Synthesis of Differentially Protected 2-(Hydroxymethyl)piperazines

Abstract

An efficient and scalable synthesis of three differentially protected 2-(hydroxymethyl)piperazines is presented, starting from optically active and commercially available (2S)-piperazine-2-carboxylic acid dihydrochloride. These synthetic building blocks are useful in the preparation of biologically active compounds and as chemical scaffolds for the construction of combinatorial libraries