Using CC(C)(C)[Si](C)(C)Cl, C[C@]12CC[C@@H]3c4cc([N+](=O)[O-])c(O)cc4CC[C@H]3[C@@H]1CCC2=O to produce CC(C)(C)[Si](C)(C)Oc1cc2c(cc1[N+](=O)[O-])[C@H]1CC[C@]3(C)C(=O)CC[C@H]3[C@@H]1CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.