InChI=1/C15H15ClN2O3/c1-2-9-3-4-10(21-9)7-17-12-6-14-13(5-11(12)16)18-15(19)8-20-14/h3-6,17H,2,7-8H2,1H3,(H,18,19)/f/h18H 544794540AE13B78