Using CC(C)(C)OC(=O)NC1CC(c2ccc(C(F)(F)F)cc2)CN(C(=O)N2CCC3(CC2)OCCO3)C1 to produce NC1CC(c2ccc(C(F)(F)F)cc2)CN(C(=O)N2CCC3(CC2)OCCO3)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.