Using O=C(O)C1CN(C(c2ccccc2)c2ccccc2)C1, O=C([O-])[O-] to produce COC(=O)C1CN(C(c2ccccc2)c2ccccc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.