InChI=1/C20H23N5O2/c1-12(2)21-20(27)23-15-10-8-14(9-11-15)19(26)22-13(3)18-24-16-6-4-5-7-17(16)25-18/h4-13H,1-3H3,(H,22,26)(H,24,25)(H2,21,23,27)/t13-/m0/s1/f/h21-24H 892714C1D000CE24