2-Chloro-6-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine
6-(Bromomethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-acetonitrile
4-Iodo-2-(methylthio)-3-(trifluoromethyl)pyridine
2-Amino-5-(aminomethyl)-3-(difluoromethyl)pyridine-6-acetic acid
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