InChI=1S/C20H28O5/c1-9(2)10-8-11-12(14(22)13(10)21)20-7-5-6-19(3,4)17(20)15(23)16(11)25-18(20)24/h9,11,15-17,21-23H,5-8H2,1-4H3/t11?,15-,16+,17-,20-/m0/s1