8-Chloro-3,4-dihydro-4-methyl-2H-pyridazino[4,5-b][1,4]oxazine
1-(2-Bromo-5-fluoropyridin-4-yl)ethanone
Dimethyl 2-(5-chloro-3-nitropyridin-2-yl)malonate
N-Methyl-4-oxo-1,4-dihydropyridine-3-carboxamide
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