Using COC(=O)c1nn(-c2ccccc2)c2c1CCc1cc(Cl)ccc1-2 to produce O=C(O)c1nn(-c2ccccc2)c2c1CCc1cc(Cl)ccc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.