InChI=1/C13H17ClN2O3/c14-11-7-5-10(6-8-11)13(18)15-9-3-1-2-4-12(17)16-19/h5-8,19H,1-4,9H2,(H,15,18)(H,16,17)/f/h15-16H 2BA3031D3135EF27