Using FC(F)(F)c1cccc(NC2CCCNC2)c1, Clc1ccc(Cl)nn1 to produce FC(F)(F)c1cccc(NC2CCCN(c3ccc(Cl)nn3)C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.