Using O=Cn1[nH]c(=Nc2cc(Oc3ncccc3C(F)(F)F)c(Cl)cc2F)sc1=O to produce O=c1[nH][nH]c(=Nc2cc(Oc3ncccc3C(F)(F)F)c(Cl)cc2F)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.