(22S,25R)-N-Benzyloxycarbonyl-22,26-epiminocholest-5-ene-3β,16β-diol

benzyl-1-methyl-2-oxopyrrolidine-3-carboxylate

benzyl (2S,4S)-2-formyl-4-hydroxypyrrolidine-1-carboxylate

(2R,3R)-3-(((benzyloxy)carbonyl)amino)-2-hydroxy-4-(phenylthio)butyl 4-nitrobenzoate

(S)-2-(benzyloxycarbonylamino)-2-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)ethyl methanesulfonate