Using COC(=O)C[C@H]1CC[C@H](c2ccc(NC(=O)CCNC(=O)OC(C)(C)C)cc2)CC1 to produce COC(=O)C[C@H]1CC[C@H](c2ccc(NC(=O)CCN)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.