Using CC(C)(C)OC(=O)N1CCC(S(C)(=O)=O)CC1, COC(=O)CS to produce COC(=O)CSC1CCN(C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.