Using O=C1CCc2cc([N+](=O)[O-])c(Br)cc21, CC(O[Si](C)(C)C)O[Si](C)(C)C to produce O=[N+]([O-])c1cc2c(cc1Br)C1(CC2)OCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.