InChI=1/C19H23N3O/c1-3-5-13-16(23)8-10-19(9-4-2)11-14-12(17(13)19)6-7-15-18(14)21-22-20-15/h6-7H,3-5,8-11H2,1-2H3,(H,20,21,22)/t19-/m0/s1/f/h21H CAAA30321E4BE491