Using COc1ccc(-c2nc3ccc(C(=O)O)cc3nc2-c2ccc(OC)cc2)cc1 to produce O=C(O)c1ccc2nc(-c3ccc(O)cc3)c(-c3ccc(O)cc3)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.