Using CN1CCNC(=O)C1, CC(C)(C)OC(=O)N1CCC(COS(C)(=O)=O)CC1 to produce CN1CCN(CC2CCN(C(=O)OC(C)(C)C)CC2)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.