InChI=1S/C33H52O6/c1-19(29(36)37)10-11-24(39-21(3)34)20(2)22-12-17-33(8)28-23(13-16-32(22,33)7)31(6)15-14-27(35)30(4,5)26(31)18-25(28)38-9/h10,20,22,24-27,35H,11-18H2,1-9H3,(H,36,37)/b19-10-