InChI=1/C15H18N4O/c16-14-4-2-1-3-13(14)10-19(11-15(17)20)9-12-5-7-18-8-6-12/h1-8H,9-11,16H2,(H2,17,20)/p+1/fC15H19N4O/h19H,17H2/q+1 7FBA2488AEFC62EA