InChI=1/C15H11ClN4O/c16-10-3-1-2-9(6-10)11(4-5-17)12-7-18-14-13(12)19-8-20-15(14)21/h1-3,6-8,11,18H,4H2,(H,19,20,21)/t11-/m0/s1/f/h20H 1DA1B0163E615AF2