InChI=1/C19H24N4O/c1-13(14-6-8-16(9-7-14)23-10-2-3-11-23)19(24)20-18-12-17(21-22-18)15-4-5-15/h6-9,12-13,15H,2-5,10-11H2,1H3,(H2,20,21,22,24)/t13-/m1/s1/f/h20-21H 461BAB7EF52D4AF8