InChI=1/C19H17N3O2/c1-13-7-9-15(10-8-13)11-16(12-20)18(23)21-22-19(24)17-6-4-3-5-14(17)2/h3-11H,1-2H3,(H,21,23)(H,22,24)/b16-11+/f/h21-22H 84B85669CD824630