InChI=1S/C20H30O6/c1-2-3-6-9-15(24-23)12-13-17-16(18-14-19(17)26-25-18)10-7-4-5-8-11-20(21)22/h2,4,7,12-13,15-19,23H,1,3,5-6,8-11,14H2,(H,21,22)/b7-4-,13-12+/t15-,16+,17+,18-,19+/m0/s1