Using CCOC(=O)CC1CN=C(c2cc3cc(OC(F)(F)F)cc(NS(=O)(=O)c4cccs4)c3[nH]2)S1 to produce O=C(O)CC1CN=C(c2cc3cc(OC(F)(F)F)cc(NS(=O)(=O)c4cccs4)c3[nH]2)S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.