Using O=C1c2ccccc2C(=O)N1O, NOC1CCCN(C(=O)OCc2ccccc2)C1 to produce O=C(OCc1ccccc1)N1CCCC(ON2C(=O)c3ccccc3C2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.