Using Cc1c(-c2ccc3c(=O)n(C(F)F)ccc3c2)nnn1-c1cccnc1F to produce Cc1c(-c2ccc3c(c2)CCN(C(F)F)C3=O)nnn1-c1cccnc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.