• 1,6-dihydro-6-oxo-3-pyridazinecarboxylic acid2022-01-18
• ethyl 6-chloropyridazine-3-carboxylate2022-01-18
• 4-chloropyrrolo[2,3-d]pyrimidine2022-01-18
• 2,4-dichloro-7h-pyrrolo[2,3-d]pyrimidine2022-01-18