InChI=1/C18H18ClNO3/c1-12-8-20(10-14-7-15(19)5-6-16(14)23-12)9-13-3-2-4-17-18(13)22-11-21-17/h2-7,12H,8-11H2,1H3/t12-/m0/s1 DB9A6DEE3F0D0E96