Using COC(=O)CCCCCCCCn1cc(-c2ccccc2)n(-c2ccc(Cl)cc2)c1=O to produce O=C(O)CCCCCCCCn1cc(-c2ccccc2)n(-c2ccc(Cl)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.