(4R,5S)-5-acetyloxy-4-isopropyl-2-oxo-oxazolidine-3-carboxylic acid tert-butyl ester

3-[N-(tert-butoxycarbonyl)-N-methyl-amino]phenyl isocyanate

(S)-1-((tert-butoxycarbonyl)amino)-2-hydroxy-3-(((4-methylphenyl)sulfonyl)oxy)propane

(2-methoxy-5-nitrophenyl)carbamic acid tert-butyl ester

methyl (1S,3R,4S)-3-((tert-butoxycarbonyl)amino)-4-((methylsulfonyl)oxy)cyclopentane-1-carboxylate