InChI=1S/C28H42O10/c1-2-3-4-5-6-10-15-19(29)16-11-8-7-9-13-18-14-12-17-20(30)21(18)27(36)38-28-24(33)22(31)23(32)25(37-28)26(34)35/h10,12,14-15,17,19,22-25,28-33H,2-9,11,13,16H2,1H3,(H,34,35)/b15-10+