Using OB(O)c1cncnc1, C[C@@H]1CCCN1[C@H]1C[C@H](c2nc3ccc(Br)cc3s2)C1 to produce C[C@@H]1CCCN1[C@H]1C[C@H](c2nc3ccc(-c4cncnc4)cc3s2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.