3-{(2R,3S)-3-[(4R,5R)-5-(Benzyloxycarbonylamino-methyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-oxiranyl}-propionic acid ethyl ester

2,2,2-Trifluoro-N-[(4R,5R)-5-((2S,3R)-3-hydroxymethyl-oxiranyl)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-acetamide

2,2,2-Trifluoro-N-[(4R,5R)-5-((2R,3S)-3-formyl-oxiranyl)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-acetamide

[(4R,5R)-5-((2R,3S)-3-Formyl-oxiranyl)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-carbamic acid benzyl ester