title: N-2-nitrophenylsulfenyl amino acid N-carboxyanhydrides.
mesh_terms: D000812:Anhydrides / Q000032:analysis / Q000138:chemical synthesis*; D008722:Methods; D009578:Nitrobenzenes; D013055:Spectrophotometry, Infrared; D013434:Sulfenic Acids
chemical_list: D000812:Anhydrides; D009578:Nitrobenzenes; D013434:Sulfenic Acids