Using CCOC(=O)c1cccc2nc(OCC)n(Cc3ccc(-c4ccccc4C(=O)C(=O)OC)cc3)c12 to produce CCOc1nc2cccc(C(=O)O)c2n1Cc1ccc(-c2ccccc2C(=O)C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.