InChI=1S/C21H32O7/c1-10(2)6-5-7-12(4)21-9-8-11(3)13(21)18(21)28-20-16(24)14(22)15(23)17(27-20)19(25)26/h6,12-18,20,22-24H,3,5,7-9H2,1-2,4H3,(H,25,26)