N-p-tolylsulfonyl-2,3'-dipyridylamine

(2E)-2-hydroxyimino-N-pyridin-3-ylacetamide

4-(pyridin-3-ylhydrazinylidene)cyclohexa-2,5-dien-1-one

propan-2-yl N-pyridin-3-ylcarbamate

3-bromo-4-methylsulfanylpyridine