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