Using Cc1ccc(S(=O)(=O)OCC(NC(=O)OC(C)(C)C)c2ccsc2)cc1, [C-]#N to produce CC(C)(C)OC(=O)NC(CC#N)c1ccsc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.