Using CC#N, COC(=O)c1ccc2c(ccn2[Si](C(C)C)(C(C)C)C(C)C)c1 to produce CC(C)[Si](C(C)C)(C(C)C)n1ccc2cc(C(=O)CC#N)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.