Using CCn1cc(B2OC(C)(C)C(C)(C)O2)cn1, C[Si](C)(C)CCOCn1cc(C=O)c2nc(Br)cnc21 to produce CCn1cc(-c2cnc3c(n2)c(C=O)cn3COCC[Si](C)(C)C)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.