InChI=1S/C27H27N5O3/c1-17-10-21(14-28-13-17)27(33)31-22-7-5-6-19(11-22)18(2)30-26-16-29-15-23(32-26)20-8-9-24(34-3)25(12-20)35-4/h5-16,18H,1-4H3,(H,30,32)(H,31,33)/t18-/m0/s1