InChI=1/C26H28N6O2/c1-19-7-11-23(12-8-19)27-17-25(33)31-29-15-21-5-3-4-6-22(21)16-30-32-26(34)18-28-24-13-9-20(2)10-14-24/h3-16,27-28H,17-18H2,1-2H3,(H,31,33)(H,32,34)/b29-15+,30-16+/f/h31-32H 4518952553B2CEAD