Using C[Si](C)(C)CCOCn1cc(C(=O)O)c2nc(C3CC3)cnc21, N#CCN to produce C[Si](C)(C)CCOCn1cc(C(=O)NCC#N)c2nc(C3CC3)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.