Using C[Si](C)(C)CCOCN1C(=O)Cc2cccnc21, N#Cc1ccc(CBr)c(CBr)n1 to produce C[Si](C)(C)CCOCN1C(=O)C2(Cc3ccc(C#N)nc3C2)c2cccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.