Using CCOC(=O)c1ncc2c(c1O)c(Br)c(-c1ccc(Cl)cc1)n2-c1ccccc1 to produce CCOC(=O)c1ncc2c(cc(-c3ccccc3)n2-c2ccccc2)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.