Using COC(=O)C1CC(CC#N)(n2cc(-c3ncnc4c3ccn4COCC[Si](C)(C)C)cn2)C1 to produce C[Si](C)(C)CCOCn1ccc2c(-c3cnn(C4(CC#N)CC(CO)C4)c3)ncnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.