InChI=1S/C31H52O7/c1-18(2)30(38,17-32)14-12-27(5,37)19-9-10-25(3)20-7-8-21-28(6,24(35)36)22(33)15-23(34)31(21)16-29(20,31)13-11-26(19,25)4/h18-23,32-34,37-38H,7-17H2,1-6H3,(H,35,36)