(1R)-1-benzyloxycarbonylamino-1-[(4R)-2,2-dimethyl-1,3-dioxolane-4-yl]-2-phenylthioethane

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

benzyl (R)-(1-(methoxy(methyl)amino)-1-oxo-3-(phenylthio)propan-2-yl)carbamate

((R)-1-Dimethylcarbamoyl-2-phenylsulfanyl-ethyl)-carbamic acid benzyl ester

((R)-2-[1,3]Dithian-2-yl-2-oxo-1-phenylsulfanylmethyl-ethyl)-carbamic acid benzyl ester