InChI=1S/C21H21N5O/c22-12-15-6-1-2-7-16(15)13-26-20(27)18-9-3-4-10-19(18)24-21(26)25-11-5-8-17(23)14-25/h1-4,6-7,9-10,17H,5,8,11,13-14,23H2/t17-/m1/s1