Using O=C(O)[C@@H]1CCCN1C(=O)OCc1ccccc1, NNC(N)=O to produce NC(=O)NNC(=O)[C@@H]1CCCN1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.