Using Brc1ccc2cn[nH]c2c1, COc1ncccc1Nc1ncnc(Cl)n1 to produce COc1ncccc1Nc1ncnc(-n2ncc3ccc(Br)cc32)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.