InChI=1S/C25H38F4O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-19-31-24(30)21-17-18-23(26)22(20-21)25(27,28)29/h17-18,20H,2-16,19H2,1H3