Using C[Si](C)(C)CCOC(=O)N1CC=C(c2cccc(C#N)c2)CC1 to produce C[Si](C)(C)CCOC(=O)N1CCC(c2cccc(CN)c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.