InChI=1S/C19H30O8/c1-10-6-5-8-18(3,4)19(10,9-7-11(2)20)27-17-14(23)12(21)13(22)15(26-17)16(24)25/h12-15,17,21-23H,1,5-9H2,2-4H3,(H,24,25)