Using Cc1cc(Cl)c(C(=O)Nc2ccc(Cl)cc2C(=O)Nc2ccc(Cl)cc2)s1, O=C1CCC(=O)N1Br to produce O=C(Nc1ccc(Cl)cc1)c1cc(Cl)ccc1NC(=O)c1sc(CBr)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.