InChI=1/C14H13ClN2O2/c1-9(10-5-2-3-6-11(10)15)17-14(19)13-12(18)7-4-8-16-13/h2-9,18H,1H3,(H,17,19)/t9-/m1/s1/f/h18h,16-17H 813F7BBC7C6322E5