InChI=1S/C21H27FO4/c1-14(2)25-19-8-7-15(11-18(19)22)9-10-21(16-5-3-4-6-16)13-17(23)12-20(24)26-21/h7-8,11-12,14,16,23H,3-6,9-10,13H2,1-2H3/t21-/m0/s1