InChI=1/C16H21ClN2O3/c17-14-6-2-1-5-13(14)15-11-19(7-9-22-15)16(20)18-10-12-4-3-8-21-12/h1-2,5-6,12,15H,3-4,7-11H2,(H,18,20)/t12-,15+/m0/s1/f/h18H 140C18D511B6C48D