Using CCCC[C@H](NC(=O)OC(C)(C)C)C(=O)N1CCC[C@H]1C(N)=O to produce CCCC[C@H](N)C(=O)N1CCC[C@H]1C(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.