Using COC(=O)CN1CC(C2=C(O)CN(CC(=O)OC)C2=O)=CC1=O to produce O=C(O)CN1CC(C2=C(O)CN(CC(=O)O)C2=O)=CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.