Using CN(CCC(Oc1ccc(C(F)(F)F)cc1)c1ccccc1)C(=O)CCCNC(=O)OC(C)(C)C to produce CN(CCC(Oc1ccc(C(F)(F)F)cc1)c1ccccc1)C(=O)CCCN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.