The first synthesis and antifungal activities of 9-methoxystrobilurin-type β-substituted β-Methoxyacrylate

The first synthesis of 9-methoxystrobilurin-type β-substituted MOAs was successfully achieved. A chiral oudemansin-type β-substituted MOA was also synthesized utilizing Mukaiyama's asymmetric aldol reaction. Antifungal activities of the synthesized compounds against several representative fungi were examined by disk-diffusion assay. As a result, unique and superior antifungal properties of 9-methoxystrobilurin-type β-substituted MOAs compared with those of oudemansin-type analogue were clearly revealed.