Ethyl 2-(aminomethyl)-3-(difluoromethyl)-5-hydroxypyridine-6-acetate
Ethyl 4-(chloromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylate
3,6-Dibromo-2-(difluoromethyl)pyridine-5-carbonyl chloride
2-Amino-4-(difluoromethyl)-6-fluoropyridine-3-sulfonyl chloride