Using COc1ccc(Nc2ncccc2C(=O)Nc2ccc(F)cc2)cc1F to produce O=C(Nc1ccc(F)cc1)c1cccnc1Nc1ccc(O)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.