Using CC(C)(C)[Si](C)(C)O[C@H]1CC[C@@H](N2CCC3(CCCN(C(=O)OCc4ccccc4)C3)C2=O)CC1 to produce CC(C)(C)[Si](C)(C)O[C@H]1CC[C@@H](N2CCC3(CCCNC3)C2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.