InChI=1/C18H17ClN4/c1-12-13(2)18(21-16-5-3-15(19)4-6-16)23-22-17(12)11-14-7-9-20-10-8-14/h3-10H,11H2,1-2H3,(H,21,23)/f/h21H 860B4B1A1DFB4DF5