Using COC(=O)c1cccc2[nH]nc(CN[C@H]3CN4CCC3CC4)c12 to produce O=C([O-])c1cccc2[nH]nc(CN[C@H]3CN4CCC3CC4)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.