Using CN1Cc2c(Cl)ccnc2NC1=O, Nc1ccc(NC(=O)c2cccc(F)c2)cc1F to produce CN1Cc2c(Nc3ccc(NC(=O)c4cccc(F)c4)cc3F)ccnc2NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.