Using O=C(O)c1cc(Br)ccc1Br, O=C1CCN(Cc2ccccc2)CC1 to produce O=C(O)c1cc(Br)ccc1C1(O)CCN(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.