InChI=1S/C20H26F3NO3/c1-2-3-4-5-8-14-27-19(26)17-12-9-13-24(17)18(25)15-10-6-7-11-16(15)20(21,22)23/h6-7,10-11,17H,2-5,8-9,12-14H2,1H3