4-Chloro-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid
3-(Bromomethyl)pyridazine
Ethyl 6-bromoimidazo[1,2-b]pyridazine-2-carboxylate
1H-Pyrazolo[3,4-c]pyridazin-3-amine
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