InChI=1S/C21H26F2O5/c1-10-6-12-13-8-15(22)14-7-11(24)4-5-18(14,2)20(13,23)16(25)9-19(12,3)21(10,28)17(26)27/h4-5,7,10,12-13,15-16,25,28H,6,8-9H2,1-3H3,(H,26,27)/t10-,12?,13?,15+,16+,18+,19+,20+,21+/m1/s1