Using CCCC[C@H](NC(=O)[C@H](CC(C)C)NC(=O)OC(C)(C)C)C(=O)CSCc1ccco1 to produce CCCC[C@H](NC(=O)[C@@H](N)CC(C)C)C(=O)CSCc1ccco1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.