Using CCOC(=O)COc1cc(-c2ccc(OC)cc2)nc(Nc2ccc(OC)c(Cl)c2)n1 to produce COc1ccc(-c2cc(OCC(=O)O)nc(Nc3ccc(OC)c(Cl)c3)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.