InChI=1/C19H26N4O3/c1-14-3-5-15(6-4-14)21-16(24)13-17(25)23-10-7-19(8-11-23)18(26)20-9-12-22(19)2/h3-6H,7-13H2,1-2H3,(H,20,26)(H,21,24)/f/h20-21H 94A35939989AD183