Using C[Si](C)(C)CCOCCl, N#Cc1cccc(C#N)c1-c1nc2c3ccc(Cl)cc3c3cc(Br)ccc3c2[nH]1 to produce C[Si](C)(C)CCOCn1c(-c2c(C#N)cccc2C#N)nc2c3ccc(Br)cc3c3cc(Cl)ccc3c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.