Using CC(C)[C@H](Nc1cncc(-c2cn(COCC[Si](C)(C)C)c3ncc(NCc4ccccc4)cc23)c1)C(=O)NCC(F)(F)F to produce CC(C)[C@H](Nc1cncc(-c2cn(COCC[Si](C)(C)C)c3ncc(N)cc23)c1)C(=O)NCC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.