Using Clc1nc(NC2CCC2)c2c(Br)c[nH]c2n1, Nc1ccc2cn[nH]c2c1 to produce Brc1c[nH]c2nc(Nc3ccc4cn[nH]c4c3)nc(NC3CCC3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.