Using CCOC(=O)c1ccc2nc(-c3ccc(OC)cc3)c(-c3ccc(OC)cc3)cc2c1 to produce COc1ccc(-c2cc3cc(C(=O)O)ccc3nc2-c2ccc(OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.