Using C1COCCN1, CC(C)(C)OC(=O)N1CCN(S(=O)(=O)CCCCl)CC1 to produce CC(C)(C)OC(=O)N1CCN(S(=O)(=O)CCCN2CCOCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.