InChI=1/C20H19NO8/c22-8-15-17(24)18(25)19(26)20(29-15)28-10-4-5-11-14(7-10)27-9-12(16(11)23)13-3-1-2-6-21-13/h1-7,9,15,17-20,22,24-26H,8H2/t15-,17+,18+,19+,20-/m0/s1 1B9191C107C64AB1