InChI=1/C19H23N5O2/c1-11-7-12(2)9-15(8-11)24-6-5-16(18(24)26)17(25)22-23-19-20-13(3)10-14(4)21-19/h7-10,16H,5-6H2,1-4H3,(H,22,25)(H,20,21,23)/t16-/m0/s1/f/h22-23H 32415102F048FD98