Using COC(=O)c1cc(C(=O)c2cccc(OC)c2)n2c1ccc1ccccc12 to produce COc1cccc(C(=O)c2cc(C(=O)O)c3ccc4ccccc4n23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.