InChI=1/C15H16N6O2/c22-14(11-4-2-1-3-5-11)17-18-15(23)12-6-8-13(9-7-12)21-10-16-19-20-21/h1-2,6-11H,3-5H2,(H,17,22)(H,18,23)/t11-/m1/s1/f/h17-18H 477D32351997C638