Using COc1cc(Br)c2nc(-c3ccccc3)[nH]c2c1 to produce COc1cc(Br)c2nc(-c3ccccc3)n(-c3ccc(C)cc3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.