Pyridine series

1,2-Diamino-4,5-difluorobenzen

N,N-Diethyl-m-toluamide

4-beta-Hydroxyethylsulfonyl su

Di-tert-butyl ether

2,4,6-Trichloroaniline  

Benzaldehyde dimethyl acetal  

tert-Butoxybis(dimethylamino)m

CBS, N-Cyclohexyl-2-benzothiaz

Pirenzepine 2HCl

Drotaverine HCl