2-Bromo-3-(difluoromethyl)pyridine-4-carboxylic acid
3-(Difluoromethyl)-2-methoxy-5-(trifluoromethyl)pyridine
2-(Difluoromethyl)-6-nitro-4-(trifluoromethyl)pyridine
2-(Difluoromethyl)-5-nitro-4-(trifluoromethyl)pyridine
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