Using COC(=O)c1ccc(-c2nc3ccc(OC)c(C=O)c3[nH]2)cc1 to produce COC(=O)c1ccc(-c2nc3ccc(O)c(C=O)c3[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.