Pyridine series

4-(4455-tetramethyl-132-dioxab

5-bromo-6-methoxy-1H-indazole

6-amino-5-chloropyrimidine-4-c

6-(4455-tetramethyl-132-dioxab

(1H-indazol-5-yl)methanamine

6-bromo-3-chloropyrazin-2-amin

3-methyl-1H-indazole

oxazol-2-amine

ethyl 6-bromo-1H-pyrrolo[23-b]

4-chloro-5-iodo-1H-pyrrolo[23-

3-(bromomethyl)pyridazine

methyl 1H-indazole-3-carboxyla