Pyridine series

5-Hydroxy-1H-indazole-3-carbox

1,3,5-triformylbenzene

4-Bromo-2-chloroaniline

Triphenylmethyl mercaptan

1,2-Dichloropropane

2-Methyl-2-propane thiol

2-Methoxyethanol

3-bromo-5-methoxy-2-methylpyri

N-Phenylbenzamide

2-Chloro-5-methyl-4-nitropheno

methyl 2-amino-5-chloronicotin

6-Aminoindan-1-one