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