Using CCCc1cnc(N2CCC(Oc3cc(=O)n(-c4ccc(Cl)c(Cl)c4)nc3C(=O)O)CC2)nc1 to produce CCCc1cnc(N2CCC(Oc3cnn(-c4ccc(Cl)c(Cl)c4)c(=O)c3)CC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.