(1S,3R,5S,6S,7R)-6-(tert-Butyl-dimethyl-silanyloxy)-8-(4-methoxy-benzyl)-4-oxa-8-aza-tricyclo[5.1.0.03,5]octan-2-one

(1R,5S,6S)-3-azido-5-[(tert-butyldimethylsilyl)oxy]-7-oxabicyclo[4.1.0]hept-3-en-2-one

N-[(1R,5S,6S)-5-[(tert-butyldimethylsilyl)oxy]-2-oxo-7-oxabicyclo[4.1.0]hept-3-en-3-yl]acetamide

(1S,4S)-4-((tert-butyldimethylsilyl)oxy)cyclohex-2-enol