Using COc1ccc2c3c([nH]c2c1)CCCC3=O, BrCc1ccccc1 to produce COc1ccc2c3c(n(Cc4ccccc4)c2c1)CCCC3=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.