Using C[C@H]1CN(CC[C@]23C=C[C@H](CC2)N(C(=O)OC(C)(C)C)O3)CC[C@@H]1OC(=O)C(C)(C)C to produce C[C@H]1CN(CCC23CCC(CC2)NO3)CC[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.