Using O=S(=O)(c1ccccc1)n1cc(-c2cc(F)nc(F)c2)c2cccnc21 to produce Fc1cc(-c2c[nH]c3ncccc23)cc(F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.