Ethyl 2-amino-4-methyl-3-(trifluoromethoxy)pyridine-6-carboxylate
2-(Difluoromethyl)-6-methoxy-3-nitropyridine-5-sulfonyl chloride
2-Bromo-3-(chloromethyl)-4-(difluoromethyl)-6-methylpyridine
4-(Difluoromethyl)-3-fluoro-2-hydroxypyridine-6-carboxylic acid