Using O=C(Nc1cc2c(cc1O)C(F)(F)OC2(F)F)c1ccncc1F to produce Fc1cnccc1-c1nc2cc3c(cc2o1)C(F)(F)OC3(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.