Using O=C=Nc1ccc(F)cc1F, C[C@@H]1CCNC[C@@H]1c1ncc2cnc3[nH]ccc3n12 to produce C[C@@H]1CCN(C(=O)Nc2ccc(F)cc2F)C[C@@H]1c1ncc2cnc3[nH]ccc3n12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.