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