Using C[Si](C)(C)CCOCn1c(C2CC2)nc(Br)c1-c1ccnc(Cl)n1, N#CCCN to produce C[Si](C)(C)CCOCn1c(C2CC2)nc(Br)c1-c1ccnc(CCC#N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.