(1R,2S,4S)-1-<(tert-Butyloxycarbonyl)amino>-2-<(tert-butyldimethylsilyl)oxy>-4-(hydroxymethyl)cyclopentane

(1R,4S,6S)-N-(tert-Butyloxycarbonyl)-6-(tert-butyldimethylsiloxy)-2-azabicyclo(2.2.1)-3-heptanone

(1R,2S,4S)-1-((tert-Butyloxycarbonyl)amino)-2-((tert-butyldimethylsilyl)oxy)-4-((methoxymethoxy)methyl)cyclopentane

(1R,4S,6R)-6-Iodo-2-(p-methoxybenzyl)-2-azabicyclo[2.2.1]-3-heptanone

(1R,4S)-1-[(tert-Butyloxycarbonyl)amino]-4-(hydroxymethyl)-2-cyclopentene