Using COC(=O)c1cc(Cl)cc2c1c(C)c(Br)n2C(C)C, CB1OB(C)OB(C)O1 to produce COC(=O)c1cc(Cl)cc2c1c(C)c(C)n2C(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.