InChI=1/C22H23N3O2/c1-4-16-6-8-17(9-7-16)21-23-22(27-24-21)18-12-20(26)25(13-18)19-10-5-14(2)11-15(19)3/h5-11,18H,4,12-13H2,1-3H3/t18-/m0/s1 8DFD9E9609B81081