Using COC(=O)Cc1cnc(N)s1, O=C=Nc1cccc(C(F)(F)F)c1 to produce COC(=O)Cc1cnc(NC(=O)Nc2cccc(C(F)(F)F)c2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.