Using CN1CCNCC1, NS(=O)(=O)c1cc(C(=O)N2CCOCC2)ccc1Cl to produce CN1CCN(c2ccc(C(=O)N3CCOCC3)cc2S(N)(=O)=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.