Using O=C(Nc1cccc(-c2nn3ccccc3c2-c2ccnc(Nc3cccc(F)c3)n2)c1)C(F)(F)F to produce Nc1cccc(-c2nn3ccccc3c2-c2ccnc(Nc3cccc(F)c3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.