Using BrCc1ccccc1, COc1cc(Br)cc(C23CC4CC(CC(C4)C2)C3)c1O to produce COc1cc(Br)cc(C23CC4CC(CC(C4)C2)C3)c1OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.