InChI=1/C14H18N4O2/c1-19-5-6-20-12-4-2-3-10(8-12)7-11-9-17-14(16)18-13(11)15/h2-4,8-9H,5-7H2,1H3,(H4,15,16,17,18)/f/h15-16H2 972A037E081AE1C8