InChI=1/C15H20N4O3/c1-4-22-12-7-9(6-11(20-2)13(12)21-3)5-10-8-18-15(17)19-14(10)16/h6-8H,4-5H2,1-3H3,(H4,16,17,18,19)/f/h16-17H2 670676905B8E1F24