Using CC(=O)c1cc(Cl)c(Nc2nc3ccc(Br)cc3c3c(=O)[nH]ccc23)c(Cl)c1 to produce CC(O)c1cc(Cl)c(Nc2nc3ccc(Br)cc3c3c(=O)[nH]ccc23)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.