Using O=C1CN(S(=O)(=O)c2ccc3cc(Cl)ccc3c2)CCN1N=C1CCN(c2ccncc2)CC1 to produce O=C1CN(S(=O)(=O)c2ccc3cc(Cl)ccc3c2)CCN1NC1CCN(c2ccncc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.