InChI=1/C28H31N3O2/c1-28-16-18-31(17-15-21-9-5-3-6-10-21)26(28)30(2)25-14-13-23(19-24(25)28)33-27(32)29-20-22-11-7-4-8-12-22/h3-14,19,26H,15-18,20H2,1-2H3,(H,29,32)/t26-,28-/m0/s1/f/h29H EE22177E9A9D4E13