Tert-butyl 4-hydroxy-2-(trifluoromethyl)-5,6-dihydropyrido[3,4-d]pyrimidine-7(8h)-carboxylate
5-Bromo-4-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid
3-Benzyl-6-chloro-4,5-dimethylpyridazine
3-Chloro-6-iodo-4,5-dimethylpyridazine