InChI=1S/C17H28O8/c1-2-3-4-7-10-11(24-10)8-5-6-9-23-17-14(20)12(18)13(19)15(25-17)16(21)22/h5-6,10-15,17-20H,2-4,7-9H2,1H3,(H,21,22)/b6-5+