InChI=1/C13H17N5O/c1-4-18-9-11(8-15-18)16-10-5-6-14-12(7-10)13(19)17(2)3/h5-9H,4H2,1-3H3,(H,14,16)/f/h16H 9DC6C4C6E03B0D2D