上游原料
1-(bromomethyl)-3-nitrobenzene2,4-dichlorobenzoyl chloride; 2,4-Dichlorophenacylchloridetert-butyl (2S)-2-amino-3-phenylpropanoate1,1-dimethylethyl 2-{[(2,4-dichlorophenyl)carbonyl]amino}-3-phenylpropanoate1,1-dimethylethyl 2-{[(2,4-dichlorophenyl)carbonyl][(3-nitrophenyl)methyl]amino}-3-phenylpropanoate
