InChI=1S/C28H32N4O2/c1-16(33)31-14-12-27-18-9-5-6-10-19(18)29-24-28(27)13-15-32(25(27)31)22(23-26(2,3)34-23)17-8-7-11-20(21(17)28)30(24)4/h5-11,22-25,29H,12-15H2,1-4H3/t22-,23?,24+,25+,27-,28-/m0/s1