InChI=1S/C20H31NO17/c1-5(22)17(31)35-4-8(36-18-13(28)11(26)12(27)15(37-18)16(29)30)10(25)14-9(21-6(2)23)7(24)3-20(34,38-14)19(32)33/h5,7-15,18,22,24-28,34H,3-4H2,1-2H3,(H,21,23)(H,29,30)(H,32,33)/t5?,7?,8?,9?,10?,11?,12?,13?,14?,15?,18?,20-/m0/s1