Using O=C(Cl)c1cccnc1F, CC1(C)CNC(=O)c2cc(N)ccc21 to produce CC1(C)CNC(=O)c2cc(NC(=O)c3cccnc3F)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.