Using COC(CNC(=O)[C@H](NC(=O)OCc1ccccc1)C(C)C)OC to produce CC(C)[C@@H]1C(=O)NC=CN1C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.