InChI=1/C21H21N5O/c1-3-26-19-17(21(27)25(2)18-5-4-10-23-20(18)26)13-16(14-24-19)7-6-15-8-11-22-12-9-15/h4-5,8-14H,3,6-7H2,1-2H3 2590FB3B4610AD5C