Using Clc1cc(CN2CCCC2)ccn1, Nc1cn2cc(Br)ccc2n1 to produce Brc1ccc2nc(Nc3cc(CN4CCCC4)ccn3)cn2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.