InChI=1S/C20H28O5/c1-11(2)13-9-12-5-6-14-19(3,10-21)7-4-8-20(14,18(24)25)15(12)17(23)16(13)22/h9,11,14,21-23H,4-8,10H2,1-3H3,(H,24,25)/t14?,19?,20-/m1/s1