Using CCOC(=O)c1nccnc1CS(=O)(=O)Cc1c(Cl)cccc1C(F)(F)F, CCC(C)(C)[O-] to produce CCOC(=O)c1nccnc1C(CC)S(=O)(=O)Cc1c(Cl)cccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.