InChI=1S/C23H23NO8/c1-10(2)5-6-13-12(4)20-16(8-14(13)25)31-21-18(23(30)32-20)11(3)7-15(26)19(21)22(29)24-9-17(27)28/h5,7-8,25-26H,6,9H2,1-4H3,(H,24,29)(H,27,28)