Using c1cc(-c2ncc[nH]2)ccn1, Brc1cn2ccnc2c(Br)n1 to produce Brc1cn2ccnc2c(-n2ccnc2-c2ccncc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.