Using COc1cccc2c1C[C@@](NC(=O)c1ccccc1)(C(=O)N[C@@H](Cc1ccccc1)C(=O)NC1CCCCC1)CC2 to produce N[C@@H](Cc1ccccc1)C(=O)NC1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.