4-(Chloromethyl)-3-(difluoromethyl)pyridine-2-carboxylic acid
3-(Chloromethyl)-5-(difluoromethyl)pyridine-2-carboxylic acid
5-(Difluoromethyl)-2-methoxypyridine-3-carboxylic acid
2,5-Diamino-4-(difluoromethyl)-3-iodopyridine
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