2-(Difluoromethyl)-4-fluoro-5-methoxypyridine-3-sulfonyl chloride
2-(Difluoromethyl)-4-fluoro-3-methoxypyridine-5-sulfonyl chloride
2-(Difluoromethyl)-3-fluoro-6-methoxypyridine-4-sulfonyl chloride
2-(Difluoromethyl)-3-fluoro-4-methoxypyridine-5-sulfonyl chloride