InChI=1S/C20H23NO10/c22-11(7-6-9-4-2-1-3-5-9)21-8-10(15-17(30-15)18(21)26)29-20-14(25)12(23)13(24)16(31-20)19(27)28/h1-5,10,12-17,20,23-25H,6-8H2,(H,27,28)