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