4-Bromo-6-hydroxypicolinaldehyde
Methyl 3,4-difluoro-2-(difluoromethyl)pyridine-5-acetate
Ethyl 2-chloro-6-nitronicotinate
3-(Difluoromethyl)-2-methoxy-6-nitro-4-(trifluoromethoxy)pyridine
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