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