A facile synthetic method for peptide–porphyrin conjugates containing four peptide units on one porphyrin was developed using chemoselective reactions. The key building blocks, 5, 10, 15, 20-tetrakis (3-azidophenyl) porphyrin 1 and 5, 10, 15, 20-tetrakis (5-azido-3-pyridyl) porphyrin 2, were efficiently synthesized and used as substrates for two well-known chemoselective reactions, traceless Staudinger ligation and copper-catalyzed azide ...
