InChI=1S/C26H29N3O4/c1-22(2)8-6-14-10-15-16(11-17(14)33-22)27-19-23(3,4)18-12-24-7-5-9-29(24)21(31)25(18,28-20(24)30)13-26(15,19)32/h6,8,10-11,18,32H,5,7,9,12-13H2,1-4H3,(H,28,30)/t18-,24+,25+,26+/m0/s1