InChI=1S/C20H31NO18/c1-3(22)21-5-13(37-20-12(29)8(25)10(27)15(39-20)17(32)33)6(23)4(36-18(5)34)2-35-19-11(28)7(24)9(26)14(38-19)16(30)31/h4-15,18-20,23-29,34H,2H2,1H3,(H,21,22)(H,30,31)(H,32,33)