Using CO[C@H]1CC[C@H](Nc2nc(-n3c(C)ccc3C)nc(C)c2Br)CC1 to produce CO[C@H]1CC[C@H](Nc2nc(N)nc(C)c2Br)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.