InChI=1S/C20H24N4O3/c1-15-3-8-18(13-19(15)24(26)27)21-20(25)17-6-4-16(5-7-17)14-23-11-9-22(2)10-12-23/h3-8,13H,9-12,14H2,1-2H3,(H,21,25)