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