InChI=1/C21H33N3O3/c1-4-6-11-23(12-7-5-2)13-8-14-24-19-10-9-17(21(26)27)15-18(19)22-20(24)16(3)25/h9-10,15-16,25H,4-8,11-14H2,1-3H3,(H,26,27)/t16-/m1/s1/f/h23H A31B73F915F001D7