InChI=1/C18H23N3O2/c1-3-15-7-4-8-16(12-15)20-17(22)13-19-18(23)21-10-5-6-14(2)9-11-21/h1,4,7-8,12,14H,5-6,9-11,13H2,2H3,(H,19,23)(H,20,22)/t14-/m0/s1/f/h19-20H FEBBE4D90B117712