InChI=1S/C21H25NO9/c1-20(30)7-5-4-6-8(23)9(7)14(24)10-11(20)15(25)12-13(22(2)3)16(26)17(27)19(29)21(12,31)18(10)28/h4-6,10-13,15-17,23,25-27,30-31H,1-3H3/t10?,11?,12?,13?,15?,16?,17?,20-,21+/m1/s1