Using Fc1ccccc1Cn1nc(-c2ccc3nccnc3n2)c2cccnc21 to produce Fc1ccccc1Cn1nc(-c2ccc3c(n2)NCCN3)c2cccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.