InChI=1S/C28H38O8/c1-13-10-20(36-23(31)14(13)2)26(5,32)27(33)9-7-16-15-11-21-28(34)22(30)18(35-21)12-19(29)25(28,4)17(15)6-8-24(16,27)3/h7,15,17-18,20-22,30,32-34H,6,8-12H2,1-5H3