InChI=1/C20H23N5O2/c1-16-3-2-4-18(13-16)24-11-9-23(10-12-24)8-7-22-19-6-5-17(15-21)14-20(19)25(26)27/h2-6,13-14,22H,7-12H2,1H3/p+1/fC20H24N5O2/h23H/q+1 E482EFF646F8C9D6