InChI=1/C18H21N3O2/c19-16(18(20)23)10-11-17(22)21-15-8-6-14(7-9-15)12-13-4-2-1-3-5-13/h1-9,16H,10-12,19H2,(H2,20,23)(H,21,22)/t16-/m0/s1/f/h21H,20H2 C82454C415F97719