4-[2-(1,3-dithiol-2-ylidene)-1,3-dithiol-4-yl]pyridine

4-(2-methylsulfonylethenyl)pyridine

3-(叔丁基)-1-(吡啶-4-基)-1H-吡唑-5-胺

4-cyclohex-2-en-1-ylpyridine

tert-butyl 2-pyridin-4-ylacetate