6-Bromo-3-(difluoromethyl)-2-hydroxypyridine-4-carbonyl chloride
3-Amino-4-bromo-5-(difluoromethyl)pyridine-2-methanol
3-Amino-2-methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-(Difluoromethyl)-4-methoxy-6-(trifluoromethoxy)pyridine-3-carboxylic acid