Using CC(C)(C)[Si](C)(C)OCc1cnc([Zn+])s1, Nc1ncc(Br)nn1 to produce CC(C)(C)[Si](C)(C)OCc1cnc(-c2cnc(N)nn2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.