InChI=1/C13H19N3O2/c14-12(18)11-8-10(4-7-15-11)16-13(9-17)5-2-1-3-6-13/h4,7-8,17H,1-3,5-6,9H2,(H2,14,18)(H,15,16)/f/h16H,14H2 C539186B50934F95