Using CCN(CC)CCN1C(=O)c2ccccc2C1=O, Brc1cccc2ccccc12 to produce CCN(CC)CCN1C(=O)c2ccccc2C1(O)c1cccc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.