InChI=1S/C21H30F3NO3/c1-4-5-6-7-8-11-14-28-20(27)18(15(2)3)25-19(26)16-12-9-10-13-17(16)21(22,23)24/h9-10,12-13,15,18H,4-8,11,14H2,1-3H3,(H,25,26)