2-(3,5-dimethoxyphenyl)propan-2-yl (2-bromo-3,5-dinitrophenethylcarbamoyl)methylcarbamate

tert-butyl (S)-1-(2-bromo-3,5-dinitrophenethylcarbamoyl)-2-hydroxyethylcarbamate

2-(3,5-dimethoxyphenyl)propan-2-yl (S)-1-(2-bromo-3,5-dinitrophenethylcarbamoyl)-2-tert-butoxyethylcarbamate

2-(3,5-dimethoxyphenyl)propan-2-yl (1S,2R)-1-(2-bromo-3,5-dinitro-phenethylcarbamoyl)-2-tert-butoxypropylcarbamate