InChI=1S/C17H28O15/c1-27-11-8(21)10(23)16(32-13(11)14(24)25)31-12-6(19)4(18)2-29-17(12)30-5-3-28-15(26)9(22)7(5)20/h4-13,15-23,26H,2-3H2,1H3,(H,24,25)