InChI=1/C13H12ClFN2O3/c14-8-4-7-2-1-3-16(12(7)10(15)5-8)13(18)9-6-11(9)17(19)20/h4-5,9,11H,1-3,6H2/t9-,11-/m0/s1 08959D4D07891C1B