InChI=1/C18H21N5O2/c1-11-8-15(24)21-18(20-11)22-19-10-13-9-12-4-2-6-23-7-3-5-14(16(12)23)17(13)25/h8-10,25H,2-7H2,1H3,(H2,20,21,22,24)/b19-10+/f/h21-22H 6DAB570DF7DBF9A2