A Convenient Synthesis of 1-(S)-[1’-(S)-(t-Butyloxycarbonylamino)-2’-phenylethyl]oxirane, a Versatile Intermediate for the Preparation of Hydroxyethylamine Based HIV Protease Inhibitors

Abstract
A concise, stereocontrolled synthesis of N-protected (1S,1’S)-α-aminoepoxides, important intermediates for the preparation of hydroxyethylamine dipeptide isosteres, beginning with α-aminoesters is described.