InChI=1S/C20H28O6/c1-11(2)9-16(22)25-10-13-5-6-14-12(3)18(23)26-17(14)19(4)15(21)7-8-20(13,19)24/h11,13-14,17,24H,3,5-10H2,1-2,4H3/t13-,14+,17-,19+,20-/m1/s1