3-(4-ACETOXYBENZOYL)-2-CHLOROPYRIDINE
4-BROMO-3-CHLOROPYRIDINE,
3-AMINO-5-CHLOROPYRIDINE-4-CARBOXYLIC ACID
2-(4-BROMOPHENYL)-6-CHLOROPYRIDINE-4-CARBALDEHYDE
3-{[6-amino-2-(methylsulfanyl)pyrimidin-4-yl]amino}-6-chloropyridine-2(1H)-thione