InChI=1/C15H16N6O/c1-2-4-11(5-3-1)18-14-12-13(17-10-16-12)19-15(20-14)21-6-8-22-9-7-21/h1-5,10H,6-9H2,(H2,16,17,18,19,20)/f/h17-18H 4B76DD81E5FE5936