InChI=1/C18H21N5O/c1-11-12(2)21-18-15(11)17(20-10-9-19-13(3)24)22-16(23-18)14-7-5-4-6-8-14/h4-8H,9-10H2,1-3H3,(H,19,24)(H2,20,21,22,23)/f/h19-21H 05D1B780638485B7