Using CCN=C=NCCCN(C)C, O=C(O)c1ccccc1N1CCN(S(=O)(=O)c2ccccc2Cl)CC1 to produce NC(=O)c1ccccc1N1CCN(S(=O)(=O)c2ccccc2Cl)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.