Using CC(C)(C)[C@@H](NC(=O)OCc1ccccc1)C(=O)N1CCC(N2Cc3cnc(CO[Si](C)(C)C(C)(C)C)n3C2=O)CC1 to produce CC(C)(C)[C@@H](N)C(=O)N1CCC(N2Cc3cnc(CO[Si](C)(C)C(C)(C)C)n3C2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.