Using COCC(=O)NN, O=C(O)[C@@H]1CC[C@@H]2CN1C(=O)N2OCc1ccccc1 to produce COCC(=O)NNC(=O)[C@@H]1CC[C@@H]2CN1C(=O)N2OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.