InChI=1/C19H28N4O3/c1-15-5-9-21(10-6-15)14-16-7-11-22(12-8-16)19(24)20-17-3-2-4-18(13-17)23(25)26/h2-4,13,15-16H,5-12,14H2,1H3,(H,20,24)/p+1/fC19H29N4O3/h20-21H/q+1 8B291DD09154CA2D