Using Nc1cccc(Br)c1, CCOC(=O)C1CCc2c(sc3ncnc(Cl)c23)C1 to produce CCOC(=O)C1CCc2c(sc3ncnc(Nc4cccc(Br)c4)c23)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.