InChI=1S/C18H30O9/c1-2-3-4-5-6-7-8-9-10-11(19)17(25)27-18-14(22)12(20)13(21)15(26-18)16(23)24/h7-8,11-15,18-22H,2-6,9-10H2,1H3,(H,23,24)/b8-7-