InChI=1S/C21H32O8/c1-8-5-6-9-12(20(9,2)3)13-11(8)10(7-21(13,4)27)28-19-16(24)14(22)15(23)17(29-19)18(25)26/h9-10,12-17,19,22-24,27H,5-7H2,1-4H3,(H,25,26)