InChI=1/C21H22N4O2/c1-3-15-5-4-6-19(13-15)25-20(26)22-14(2)16-7-9-17(10-8-16)23-21(27)24-18-11-12-18/h1,4-10,13-14,18H,11-12H2,2H3,(H2,22,25,26)(H2,23,24,27)/t14-/m1/s1/f/h22-25H DE44B308B70B8DCA