2-Ethoxypyridine
2,3 -Cyclopentenopyridine
2-Alkoxypyridine
3,5 -Dibromopyridine
2-( Alkylamino ) pyridine
2-Hydoxyethylpyridine
2,3 -Dichloropyridine
2-Hydroxy 3-chloropyridine
2-Hydroxy-5-chloropyridine
2,3,5 -Trichloropyridine
2-Hydroxy-3, 5 dichloropyridine
3-Bromopyridine
3-Hydroxpyridine