Using Nc1nc(N)c2c(N3CCNCC3)cccc2n1, Cc1ccccc1CBr to produce Cc1ccccc1CN1CCN(c2cccc3nc(N)nc(N)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.