InChI=1S/C25H31NO10/c27-19-20(28)22(24(31)32)36-25(21(19)29)35-17(23(30)26-11-5-2-6-12-26)8-4-1-3-7-15-9-10-16-18(13-15)34-14-33-16/h1,3-4,7,9-10,13,17,19-22,25,27-29H,2,5-6,8,11-12,14H2,(H,31,32)/b4-1+,7-3+