Using O=C(OCc1ccccc1)N1CCC(O)(C(F)(F)F)CC1c1ccc(F)c(F)c1 to produce OC1(C(F)(F)F)CCNC(c2ccc(F)c(F)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.