Using CC1(C)SC(C)(C)C(=O)CC1=O, CCc1cc(Br)ccc1[Pb+3] to produce CCc1cc(Br)ccc1C1C(=O)C(C)(C)SC(C)(C)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.