InChI=1/C19H21N5O2/c1-13(25)24(2)15-9-7-14(8-10-15)21-19(26)20-12-11-18-22-16-5-3-4-6-17(16)23-18/h3-10H,11-12H2,1-2H3,(H,22,23)(H2,20,21,26)/f/h20-22H 5B931D329A82D896