Using Cc1cn(COCC[Si](C)(C)C)c2nccc(-n3cnc(-c4ccccc4)c3)c12 to produce Cc1c[nH]c2nccc(-n3cnc(-c4ccccc4)c3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.