Using CCOC(=O)/C(C)=C/[C@H](C(C)C)N(C)C(=O)[C@@H](N)C(C)(C)C, CNC(C(=O)O)C12CC3CC(CC(C3)C1)C2 to produce CCOC(=O)/C(C)=C/[C@H](C(C)C)N(C)C(=O)[C@@H](NC(=O)[C@H](NC)C12CC3CC(CC(C3)C1)C2)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.