InChI=1S/C26H29N3O4/c1-22(2)8-6-14-10-15-16(11-17(14)33-22)27-20(31)25(15)13-26-18(23(25,3)4)12-24(19(30)28-26)7-5-9-29(24)21(26)32/h6,8,10-11,18H,5,7,9,12-13H2,1-4H3,(H,27,31)(H,28,30)/t18-,24+,25+,26+/m1/s1