InChI=1S/C25H29N3O8/c1-35-24(33)21(17-8-3-2-4-9-17)20-11-5-6-13-28(20)25(34)36-16-27-12-7-10-18(14-27)22(30)26-19(15-29)23(31)32/h2-4,7-10,12,14,19-21,29H,5-6,11,13,15-16H2,1H3,(H-,26,30,31,32)/t19-,20+,21+/m0/s1