Pyridine series

5-Bromosalicylaldehyde

2-cyano-3,3-bis(methylthio)-2-

CHROMONE-3-CARBOXYLIC ACID

CHROMONE-3-CARBOXALDEHYDE

1,1-DIOXOBENZO[B]THIOPHEN-2-YL

1-BENZYLPYRROLIDINE-3-CARBALDE

chlorоphentermine

5-chloro-pyrazine-2-carboxylic

2,3-Difluorobenzoic acid

4-(trifluoromethoxy)phenacyl b

2-methylpropane-2-sulfinamide

Silver sulfate