Using Nc1ccc(Oc2cc(-n3c(=O)cc(C(F)(F)F)[nH]c3=O)c(F)cc2Cl)c(C(F)(F)F)c1 to produce O=c1cc(C(F)(F)F)[nH]c(=O)n1-c1cc(Oc2ccccc2C(F)(F)F)c(Cl)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.