InChI=1S/C19H24O6/c1-6-12(20)15-10(3)14(8-13(15)21)25-18(24)16-11(19(16,4)5)7-9(2)17(22)23/h6-7,11-12,14,16,20H,1,8H2,2-5H3,(H,22,23)/b9-7-/t11-,12?,14+,16+/m1/s1