InChI=1S/C15H22O6/c1-14(2)12-10(19-13(14)18)8-15(21-12)7-6-9(20-15)4-3-5-11(16)17/h9-10,12H,3-8H2,1-2H3,(H,16,17)/t9-,10-,12+,15-/m1/s1