Using C[Si](C)(C)CCOCn1cc(-c2cnc3ccccc3c2)c2c(N)ncnc21 to produce Nc1ncnc2[nH]cc(-c3cnc4ccccc4c3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.