InChI=1S/C27H36O5/c1-19(9-6-10-20(2)12-8-14-24-15-16-30-18-24)11-7-13-21(3)17-25-26(31-23(5)28)22(4)27(29)32-25/h11-12,15-18,21H,6-10,13-14H2,1-5H3/b19-11-,20-12+,25-17-/t21-/m1/s1