Using c1ccc(C(c2ccccc2)N2CCNCC2)cc1, O=C(CBr)Nc1ccc2ncnn2n1 to produce O=C(CN1CCN(C(c2ccccc2)c2ccccc2)CC1)Nc1ccc2ncnn2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.