Using CC(C)(C)OC(=O)N1CCN(c2nnc([C@@H]3CC[C@@H]4CN3C(=O)N4OCc3ccccc3)s2)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2nnc([C@@H]3CC[C@@H]4CN3C(=O)N4O)s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.