Using C=CCN(c1cc(Cl)cc(C(=O)NCc2c(C)cc(C)[nH]c2=O)c1C)C1CCOCC1 to produce CCCN(c1cc(Cl)cc(C(=O)NCc2c(C)cc(C)[nH]c2=O)c1C)C1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.