3-(Aminomethyl)-6-(difluoromethyl)-4-fluoro-2-hydroxypyridine
5-(Aminomethyl)-2-(difluoromethyl)-3-fluoro-4-hydroxypyridine
2-(Difluoromethyl)-3-fluoro-5-hydroxy-4-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(difluoromethyl)-5-fluoro-4-hydroxypyridine