Using COC(Cl)Cl, CCC(CC)Nc1cc(N2CCc3cc(Cl)cc(Cl)c32)nc(C)n1 to produce CCC(CC)Nc1nc(C)nc(N2CCc3cc(Cl)cc(Cl)c32)c1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.