InChI=1/C28H29N3O3/c1-19-7-11-22(12-8-19)30-16-21(15-27(30)33)28-29-25-5-3-4-6-26(25)31(28)17-23(32)18-34-24-13-9-20(2)10-14-24/h3-14,21,23,32H,15-18H2,1-2H3/t21-,23+/m0/s1 4DAA227DC2CA8F4E