InChI=1S/C21H40O6/c1-2-3-4-5-7-10-13-19(24)20(25)14-11-8-6-9-12-15-21(26)27-18(16-22)17-23/h7,10,18-20,22-25H,2-6,8-9,11-17H2,1H3/b10-7-/t19-,20-/m0/s1