Using OB(O)c1ccc(Cl)c(Cl)c1, Cc1c(Br)sc2c1c(=O)n(CCCO)c(=O)n2C to produce Cc1c(-c2ccc(Cl)c(Cl)c2)sc2c1c(=O)n(CCCO)c(=O)n2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.