Using CCOC(=O)c1cc2cc(NC(=O)C(=O)Nc3ccc4[nH]c(C(=O)OCC)cc4c3)ccc2[nH]1 to produce O=C(Nc1ccc2[nH]c(C(=O)O)cc2c1)C(=O)Nc1ccc2[nH]c(C(=O)O)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.