InChI=1/C20H21N3O2/c1-13-11-23(12-14(2)25-13)20-15-7-3-5-9-17(15)21-19(22-20)16-8-4-6-10-18(16)24/h3-10,13-14,22H,11-12H2,1-2H3/b19-16+/t13-,14-/m1/s1 D912135CC973FCF0