InChI=1S/C16H24O7/c1-7-4-5-16(6-8(7)16)15(2,3)23-14-11(19)9(17)10(18)12(22-14)13(20)21/h8-12,14,17-19H,1,4-6H2,2-3H3,(H,20,21)/t8?,9?,10?,11?,12?,14?,16-/m1/s1