Pyridine series

O-tert-Butyl-L-threonine tert-

5-Bromo-6-chloronicotinic acid

Phenolphthalein monophosphate

4-Amino-2-(methylthio)-6-pyrim

5-Methyl-1H-pyrazole-3-carboxa

L-Leucine p-nitroanilide hydro

Ethyl 2-amino-5-phenylthiophen

2-PHENYL-2-PROPANOL

4-IODOPYRIDINE-2-CARBOXYLIC AC

5-BROMO-4-CHLORO-3-INDOLYL ACE

5-Methyl-3-isoxazolecarbonitri

4-THIOURACIL