InChI=1/C20H23N5O3/c1-14-22-19(24-28-14)20(9-3-4-10-20)23-18(26)15-5-7-16(8-6-15)27-13-17-21-11-12-25(17)2/h5-8,11-12H,3-4,9-10,13H2,1-2H3,(H,23,26)/f/h23H 917D4B50DDDC92E1