Using O=[N+]([O-])c1cccc(B(O)O)c1, Cc1c(C)c2c(c(Br)c1O)CCC(C)(C)O2 to produce Cc1c(C)c2c(c(-c3cccc([N+](=O)[O-])c3)c1O)CCC(C)(C)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.