Using CCCCN(C[C@@H](C)NC(=O)OCc1ccccc1)C(=O)OC(C)(C)C to produce CCCCN(C[C@@H](C)N)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.