Using CN(C)C=O, CN1CCN(C(c2ccc(Cl)cc2)c2cccc(Br)c2)CC1 to produce CN1CCN(C(c2ccc(Cl)cc2)c2cccc(C=O)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.