Potassium (2-(4-(tert-butoxycarbonyl)piperazin-1-yl)-3-chloropyridin-4-yl)trifluoroborate
8-Chloro-imidazo[1,2-a]pyridine-2-carboxylic acid ethyl ester
5-Oxo-4,5-dihydro-3h-imidazo[4,5-b]pyridine-6-carboxylic acid
5-Methyl-pyridine-2-sulfonyl chloride