InChI=1/C19H21N5O/c1-11-6-12(2)8-16(7-11)17-10-18(20-15(5)25)22-19(21-17)24-14(4)9-13(3)23-24/h6-10H,1-5H3,(H,20,21,22,25)/f/h20H 9EF27D66B46C5F20