InChI=1S/C16H24O7/c1-8(2)16(6-4-9(3)5-7-16)23-15-12(19)10(17)11(18)13(22-15)14(20)21/h4,10-13,15,17-19H,1,5-7H2,2-3H3,(H,20,21)