Using C[O-], CCOC(=O)c1nn(-c2cnc(Br)cn2)c2c1C[C@H]1C[C@@H]21 to produce COc1cnc(-n2nc(C(=O)O)c3c2[C@@H]2C[C@@H]2C3)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.