InChI=1/C18H21N5O2/c1-2-19-18(25)23-15-5-3-4-14(10-15)22-17(24)12-6-9-16(20-11-12)21-13-7-8-13/h3-6,9-11,13H,2,7-8H2,1H3,(H,20,21)(H,22,24)(H2,19,23,25)/f/h19,21-23H 8B42ED7F6AA90ABE