3-Bromo-4-(oxetan-2-yl)pyridine
7-Hydroxy-8-nitro-2h-oxazolo[3,2-a]pyridin-5(3h)-one
7-Hydroxy-6-methyl-8-nitro-2h-thiazolo[3,2-a]pyridin-5(3h)-one
1-Benzyl-7-hydroxy-6-methyl-8-nitro-2,3-dihydroimidazo[1,2-a]pyridin-5(1H)-one
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