6-Chloro-2-(4-ethyl-3-nitrophenyl)imidazo[1,2-b]pyridazine
(6-Bromopyridin-2-yl)(p-tolyl)methanone
6-Amino-2-pyridinecarbohydrazide
2-Bromo-1-(2-chloropyridin-3-yl)ethanone
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