6-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
3,5-Diamino-2-nitro-6-(trifluoromethoxy)pyridine
5-(Fluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
2,4-Diamino-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine
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