InChI=1/C19H23N3O/c1-3-5-6-13-16(23)9-10-19(4-2)11-14-12(17(13)19)7-8-15-18(14)21-22-20-15/h7-8H,3-6,9-11H2,1-2H3,(H,20,21,22)/t19-/m0/s1/f/h20H	E20A0820F173B806