Using Cn1c(=O)c2c(-c3cccc(C#N)c3)n(COCC[Si](C)(C)C)cc2n(C)c1=O to produce Cn1c(=O)c2c(-c3cccc(C#N)c3)[nH]cc2n(C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.