3-Amino-4-(difluoromethyl)-2-fluoropyridine-5-acetic acid
3-Amino-2-bromo-5-(difluoromethyl)-4-(trifluoromethyl)pyridine
6-Amino-2-chloro-3-(difluoromethyl)-4-iodopyridine
Ethyl 3-amino-4-(difluoromethyl)-5-fluoropyridine-2-acetate
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