New 4-substituted concavepyridines 1b−d have been synthesised as precursors to allow extension of the pyridine π-system. With the Sonogashira coupling as the key synthetic step, the 4-iodo pyridine 1c was coupled with phenylacetylene (11) to give 1g in 77% yield. Because of its conjugated π system, the new concavepyridine 1g has UV absorption maxima at λmax1 = 286 nm and λmax2 = 303 nm with ϵmax1