InChI=1/C15H18N4O/c16-14-6-2-1-5-13(14)10-19(11-15(17)20)9-12-4-3-7-18-8-12/h1-8H,9-11,16H2,(H2,17,20)/p+1/fC15H19N4O/h19H,17H2/q+1 656605BB5FBCB159