InChI=1/C19H23N5O2/c1-13(21-22-19(26)17-11-12-24(2)23-17)14-7-9-16(10-8-14)20-18(25)15-5-3-4-6-15/h7-12,15H,3-6H2,1-2H3,(H,20,25)(H,22,26)/b21-13-/f/h20,22H F2CBAAD87F3E7EF0