Using C=CCOc1ccc(C(F)(F)F)cc1-c1sc(NC(=O)c2c(F)cccc2F)nc1C(=O)OC to produce C=CCOc1ccc(C(F)(F)F)cc1-c1cnc(NC(=O)c2c(F)cccc2F)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.