The invention relates to crystalline peptide keto epoxide compounds, methods of their preparation, and related pharmaceutical compositions. This invention also relates to methods for the preparation of amino acid keto-epoxides. Specifically, allylic ketones are stereoselectively converted to the desired keto epoxides.
                            本发明涉及晶体肽酮环氧化合物的制备方法以及相关的制药组合物。本发明还涉及
氨基酸酮
环氧化物的制备方法。具体地,烯丙基酮被立体选择性地转化为所需的酮
环氧化物。