InChI=1/C14H15ClN4O2/c1-7-13(8(2)19-18-7)14(21)17-10-4-5-12(11(15)6-10)16-9(3)20/h4-6H,1-3H3,(H,16,20)(H,17,21)(H,18,19)/f/h16-18H 3F0449E2855973ED