Using CCOC(=O)c1ccccc1N, CCOC(=O)CC(=O)c1ccc(OC)c(OC)c1 to produce COc1ccc(C(=O)c2c(O)c3ccccc3[nH]c2=O)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.