Pyridine series

3-Fluoropyrrolidine

2-Chloro-6-methoxypyidin-4-ami

8-Quinolinesulfonyl chloride

2-[5-chloro-2-(trifluoromethyl

2-nitropyridine

Fluoro(diiodo)methane 

2-Amino-5-cyano-3-nitropyridin

Roxatidine

Sodium pyroglutamate

4,6-Dichloropicolinic acid

1-BROMO-5-CHLORONAPHTHALENE

7-AMINO-3-VINYL-3-CEPHEM-4-CAR