InChI=1/C19H24N4O2/c24-16-11-15(13-7-6-10-20-12-13)17-18(21-16)23(22-19(17)25)14-8-4-2-1-3-5-9-14/h6-7,10,12,14-15H,1-5,8-9,11H2,(H,21,24)(H,22,25)/t15-/m1/s1/f/h21,25H 625F7546F21ABD05