Using Nc1ccccc1Nc1ccccc1, COc1cccc(N(C(=O)CBr)C(C)C)c1 to produce COc1cccc(N(C(=O)CNc2ccccc2Nc2ccccc2)C(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.