Using COC(=O)CN1CCCN(CCC(c2ccccc2)c2ccccc2)CC1 to produce O=C([O-])CN1CCCN(CCC(c2ccccc2)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.