Using CS(=O)(=O)Cl, CC(C)(C)OC(=O)N1CCC2(CCNCC2)C1 to produce CC(C)(C)OC(=O)N1CCC2(CCN(S(C)(=O)=O)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.