Expanding click chemistry tools (IMAGE) Tokyo Medical and Dental University Caption Facile synthesis of functionalized dibenzo-fused azacyclooctynes (DIBACs) by click reaction and subsequent cobalt decomplexation. Credit Laboratory of Chemical Bioscience, TMDU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.