Using O=C(O)C(O)C(Cc1ccccc1)NC(=O)[C@H]1CCC(=O)N1Cc1ccccc1F, NC1CC1 to produce O=C(NC1CC1)C(O)C(Cc1ccccc1)NC(=O)[C@H]1CCC(=O)N1Cc1ccccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.