6-Chloro-2-methyl-[1,2,4]triazolo[1,5-a]pyridine
2-Hydrazinyl-3-isopropylpyridine
5-Bromooxazolo[4,5-b]pyridine
4-Chloro-3-methylisoxazolo[5,4-b]pyridin-6(7H)-one
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