(S)-3-[(S)-2-Azido-2-(3-isopropoxy-phenyl)-acetyl]-4-benzyl-oxazolidin-2-one

[(R)-1-{[(S)-{(R)-2-(tert-Butyl-dimethyl-silanyloxy)-1-[3-(tert-butyl-dimethyl-silanyloxy)-phenyl]-ethylcarbamoyl}-(3-isopropoxy-phenyl)-methyl]-carbamoyl}-2-(4-fluoro-3-nitro-phenyl)-ethyl]-carbamic acid tert-butyl ester