InChI=1/C15H20N6O2/c1-4-5-13-18-19-20-21(13)9-14(22)17-15(23)16-12-7-6-10(2)8-11(12)3/h6-8H,4-5,9H2,1-3H3,(H2,16,17,22,23)/f/h16-17H E2C31429BDC5047E