InChI=1/C18H17ClN2O3/c19-14-8-6-13(7-9-14)18(10-1-2-11-18)17(22)20-15-4-3-5-16(12-15)21(23)24/h3-9,12H,1-2,10-11H2,(H,20,22)/f/h20H 4A287D6AF921A9C6