InChI=1/C23H25N3O2/c1-17-11-12-21(22(14-17)28-16-19-8-5-4-6-9-19)25-23(27)26(3)18(2)20-10-7-13-24-15-20/h4-15,18H,16H2,1-3H3,(H,25,27)/t18-/m0/s1/f/h25H DF4CB3757A8B06A5