InChI=1S/C30H38O11/c1-15(5-8-19-16(2)6-9-22(31)30(19,3)4)11-12-38-17-13-20-18(7-10-23(32)39-20)21(14-17)40-29-26(35)24(33)25(34)27(41-29)28(36)37/h7,10-11,13-14,22,24-27,29,31,33-35H,5-6,8-9,12H2,1-4H3,(H,36,37)/b15-11-