InChI=1/C19H20ClN5O/c20-15-3-1-2-13(10-15)18(21)19(26)25-8-6-24(7-9-25)16-4-5-17-14(11-16)12-22-23-17/h1-5,10-12,18H,6-9,21H2,(H,22,23)/t18-/m0/s1/f/h23H 6956A76B455DD8C6