Using Cc1ccc(C(=O)c2cc(Br)ccc2Cl)cc1, O=C1CCC(=O)N1Br to produce O=C(c1ccc(CBr)cc1)c1cc(Br)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.