Synthesis, structure, and antibacterial activity of 4-imino-1, 4-dihydrocinnoline-3-carboxylic acid and 4-oxo-1, 4-dihydrocinnoline-3-carboxylic acid derivatives as isosteric analogues of quinolones

Synthesis of cinnolines via Rh(iii)-catalysed dehydrogenative C–H/N–H functionalization: aggregation induced emission and cell imaging

Rh(iii) catalysed C–H/N–H functionalization was developed to construct cinnolines. These compounds exhibit prominent fluorescence properties and successfully applied in the cancer cell imaging.

Cinnoline Derivatives with Biological Activity

Although cinnoline belongs to a family of fairly well known heterocycles, the interest in the study of its derivatives continues. Cinnoline compounds demonstrate interesting bioactivity and many research papers have discussed the biological property, structure-activity relationship, and applications in medicinal science. Attention has been paid to the synthesis of heterocyclic compounds bearing a cinnoline moiety, mainly because of the interest in their broad spectrum of pharmacological activities. This chronological work summarizes almost all synthetic papers and patents concerning the biological properties of 107 cinnoline derivatives published over the last 50 years with 117 references.