InChI=1S/C22H25NO8/c1-23-8-7-12-9-17-21(31-11-30-17)19(28-3)14(12)10-15(24)13-5-6-16(27-2)20(29-4)18(13)22(25)26/h5-6,9,23H,7-8,10-11H2,1-4H3,(H,25,26)