Using Clc1ccc(N2CCNCC2)cc1, ClCc1cn2cc(Br)ccc2n1 to produce Clc1ccc(N2CCN(Cc3cn4cc(Br)ccc4n3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.