InChI=1/C20H23N5O3/c1-25(2)17-10-3-13(11-21-17)12-22-19(27)20(28)24-15-6-4-14(5-7-15)18(26)23-16-8-9-16/h3-7,10-11,16H,8-9,12H2,1-2H3,(H,22,27)(H,23,26)(H,24,28)/p+1/fC20H24N5O3/h21-24H/q+1 8B1A942B8E1020B3