Title : Optimization of Activity, Selectivity, and Liability Profiles in 5-Oxopyrrolopyridine DPP4 Inhibitors Leading to Clinical Candidate (Sa)-2-(3-(Aminomethyl)-4-(2,4-dichlorophenyl)-2-methyl-5-oxo-5H-pyrrolo[3,4-b]py ridin-6(7H)-yl)-N,N-dimethylacetamide (BMS-767778) - Devasthale_2013_J.Med.Chem_56_7343