Using OCc1ccc(-c2noc(-c3cc(-c4ccccc4)c(C(F)(F)F)s3)n2)cc1 to produce O=Cc1ccc(-c2noc(-c3cc(-c4ccccc4)c(C(F)(F)F)s3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.