Using CC1Cc2cc(O)c(Cl)c(Cl)c2C1=O, BrCc1ccccc1 to produce CC1Cc2cc(OCc3ccccc3)c(Cl)c(Cl)c2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.