Using CN(C)C=O, CC1(C)C(=O)Nc2ccc(COC(=O)N3CCN(C[C@@]4(C)Cn5cc([N+](=O)[O-])nc5O4)CC3)cc21 to produce CN1C(=O)C(C)(C)c2cc(COC(=O)N3CCN(C[C@@]4(C)Cn5cc([N+](=O)[O-])nc5O4)CC3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.