InChI=1/C23H23N3O2/c1-15-17(3)28-23(20(15)14-24)26-22(27)16(2)25-21(18-10-6-4-7-11-18)19-12-8-5-9-13-19/h4-13,16,21,25H,1-3H3,(H,26,27)/t16-/m1/s1/f/h26H CA6631824E4DDC76