Using ClCCN1CCOCC1, COC(=O)CN1C(=O)Cc2cc(NS(C)(=O)=O)ccc21 to produce COC(=O)CN1C(=O)Cc2cc(N(CCN3CCOCC3)S(C)(=O)=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.