Using CCOC(=O)/C=C/C(=O)N1CC(C)(C)Oc2ccc([N+](=O)[O-])cc21 to produce CC1(C)CN(C(=O)/C=C/C(=O)O)c2cc([N+](=O)[O-])ccc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.