Using COC(=O)c1ccc(C)c(-c2c(C#N)cnn2COCC[Si](C)(C)C)c1 to produce COC(=O)c1ccc(C)c(-c2[nH]ncc2C#N)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.