Using O=C(Nc1cc(Cl)cc2c1[nH]c1cncc(NC(=O)C(F)(F)F)c12)c1cccnc1 to produce Nc1cncc2[nH]c3c(NC(=O)c4cccnc4)cc(Cl)cc3c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.