InChI=1S/C20H28O5/c1-10(2)12-8-11-9-13(21)17-19(3,4)6-5-7-20(17,18(24)25)14(11)16(23)15(12)22/h8,10,13,17,21-23H,5-7,9H2,1-4H3,(H,24,25)/t13?,17?,20-/m0/s1