Using CC(C)(C)[SiH2]OC(C)(C)c1c(Br)cccc1N1C(=O)c2cc(C3(C)CC3)ccc2CC1O to produce CC(C)(C)[SiH2]OC(C)(C)c1c(Br)cccc1-n1ccc2ccc(C3(C)CC3)cc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.