Using O=C([O-])c1cccc2[nH]nc(CNCC34CCN(CC3)CC4)c12 to produce O=C1c2cccc3[nH]nc(c23)CN1CC12CCN(CC1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.