InChI=1/C20H23N3O3/c1-2-20-23-18(14-26-20)15-5-7-17(8-6-15)25-11-10-22-13-19(24)16-4-3-9-21-12-16/h3-9,12,14,19,22,24H,2,10-11,13H2,1H3/t19-/m0/s1 EEA68ED1A28D4D80