6-(Difluoromethyl)-2,3,5-trimethoxypyridine
2-Methoxy-6-(trifluoromethoxy)pyridine-4-acetic acid
5-(Difluoromethyl)-2,3,4-trimethoxypyridine
2-Methoxy-5-(trifluoromethoxy)pyridine-4-acetic acid
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