InChI=1S/C30H36O8/c1-13-20(31)22(17-7-15-8-26(3,24(34)35)11-18(15)28(13,17)5)38-25(36)27(4)9-16-10-30(37)23(33)21(32)14(2)29(30,6)19(16)12-27/h15-16,18-19,32,37H,1,7-12H2,2-6H3,(H,34,35)