Using O=C(O)CC(=O)N1CCN(C(=O)c2ccccc2Br)CC1, Nc1ccc(-c2cccnc2)cc1 to produce O=C(CC(=O)N1CCN(C(=O)c2ccccc2Br)CC1)Nc1ccc(-c2cccnc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.