Using CN(CCn1cc(C(=O)C(F)(F)F)c2ccc(Cl)cc21)C(=O)OC(C)(C)C, O to produce CN(CCn1cc(C(=O)O)c2ccc(Cl)cc21)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.