InChI=1/C16H26O8/c1-7(2)8-4-5-16(3,22)9(6-8)23-15-12(19)10(17)11(18)13(24-15)14(20)21/h8-13,15,17-19,22H,1,4-6H2,2-3H3,(H,20,21)