Ethyl 3-amino-4-(difluoromethyl)-2-methylpyridine-6-carboxylate
Ethyl 3-amino-2-(difluoromethyl)-4-methylpyridine-5-carboxylate
Ethyl 3-amino-2-(difluoromethyl)-4-methylpyridine-6-carboxylate
3-Amino-5-(difluoromethyl)-6-methylpyridine-2-acetic acid
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