InChI=1S/C15H24O9/c1-7(5-3-4-6-8(2)16)14(22)24-15-11(19)9(17)10(18)12(23-15)13(20)21/h5,8-12,15-19H,3-4,6H2,1-2H3,(H,20,21)/b7-5-