Using COC(=O)c1ccc(CN2CCC(OC(c3ccccc3)c3ccccc3)CC2)o1 to produce O=C(O)c1ccc(CN2CCC(OC(c3ccccc3)c3ccccc3)CC2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.