Using O=C1CCNCC1, C[Si](C)(C)CCOC(=O)Oc1ccc([N+](=O)[O-])cc1 to produce C[Si](C)(C)CCOC(=O)N1CCC(=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.