InChI=1S/C15H24O6/c1-2-3-4-5-6-7-15(18)11-13(17)19-9-14(11)12(21-15)10(16)8-20-14/h10-12,16,18H,2-9H2,1H3/t10-,11+,12+,14+,15-/m1/s1