Using O=C(O)CC1(C(=O)O)CCN(Cc2ccccc2)CC1, NOCc1ccccc1 to produce O=C1CC2(CCN(Cc3ccccc3)CC2)C(=O)N1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.