InChI=1S/C33H52O8/c1-18(2)6-5-7-19(3)23-10-11-24-22-9-8-20-16-21(12-15-33(20,17-34)25(22)13-14-32(23,24)4)40-31-28(37)26(35)27(36)29(41-31)30(38)39/h6,8,19,21-29,31,34-37H,5,7,9-17H2,1-4H3,(H,38,39)/t19?,21?,22?,23?,24?,25?,26?,27?,28?,29?,31?,32-,33-/m1/s1