(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(8-(4-methylpiperazin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(6-fluoro-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(5,7-dimethyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-2-(5-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(8-amino-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-2-(5-(3-hydroxyazetidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(5-morpholino-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(5-(4-methylpiperazin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(7-methoxy-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(8-iodo-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide

(S)-2-(6-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(3-oxo-8-(piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(6-fluoro-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(7-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

N-((S)-1-(4-chloro-3-fluorophenyl)ethyl)-2-(5-(3-methylmorpholino)-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-tert-butyl(3-oxo-2-(2-oxo-2-((1-(p-tolyl)ethyl)amino)ethyl)-2,3-dihydro-[1,2,4]triazolo[4,3-a]pyridin-8-yl)carbamate

N-((S)-1-(4-chloro-3-fluorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)propanamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(3,4-dichlorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(6-chloro-3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide

(S)-N-(1-(4-(difluoromethoxy)-3-fluorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(8-chloro-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(3-oxo-8-(piperazin-1-yl)-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(7-methoxy-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(5,7-dimethyl-3-oxo-[1,2,4]triazolo[4,3-c]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(6-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(5,7-dimethyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(8-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(8-(oxetan-3-ylamino)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-2-(6-bromo-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-2-(8-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(6-methyl-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(5-bromo-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(7-iodo-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-c]pyrimidin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(8-(methylamino)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-N-(1-(4-chloro-3-fluorophenyl)ethyl)-2-(5-(3,3-difluoroazetidin-1-yl)-3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(5,7-dimethyl-3-oxo-[1,2,4]triazolo[4,3-c]pyrimidin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-cyclopropylphenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)acetamide

(S)-2-(3-oxo-6-(piperidin-1-yl)-[1,2,4]triazolo[4,3-b]pyridazin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(4-chlorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-N-(1-(4-isopropoxyphenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-N-(1-(4-(difluoromethoxy)-3-fluorophenyl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)acetamide

(S)-2-(3-oxo-5-(piperazin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

N-((4-chlorophenyl)(cyclopropyl)methyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)-N-(1-(4-(trifluoromethoxy)phenyl)ethyl)acetamide

(S)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyrimidin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide

2-(3-oxo-8-(pyrrolidin-3-yl)-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-((S)-1-(p-tolyl)ethyl)acetamide

(S)-N-(1-(5-fluoropyridin-3-yl)ethyl)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)acetamide

(S)-2-(8-(azetidin-3-yloxy)-3-oxo-[1,2,4]triazolo[4,3-a]pyrazin-2(3H)-yl)-N-(1-(4-chloro-3-fluorophenyl)ethyl)acetamide

(R)-2-(3-oxo-[1,2,4]triazolo[4,3-a]pyridin-2(3H)-yl)-N-(1-(p-tolyl)ethyl)acetamide