Using BrCc1ccccc1, COc1cc2c(C=O)c(C(C)C)[nH]c2cn1 to produce COc1cc2c(C=O)c(C(C)C)n(Cc3ccccc3)c2cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.