2-Fluoro-4-methyl-3-(pyridin-3-yl)pyridine
5-Fluoro-4-methyl-2-(pyridin-4-yl)pyridine
5-Fluoro-4-methyl-2-(pyridin-3-yl)pyridine
5-Fluoro-3-methyl-2-(pyridin-4-yl)pyridine
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