3-Fluoro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
tert-Butyl (S)-3-amino-3-(6-methoxypyridin-3-yl)propanoate 4-methylbenzenesulfonate
6-Chloro-4-methyl-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Difluoromethoxy-5-methylpicolinonitrile