InChI=1S/C28H50O9/c29-21-19-17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20-22(30)36-28-25(33)23(31)24(32)26(37-28)27(34)35/h1-2,23-26,28-29,31-33H,3-21H2,(H,34,35)/b2-1-