Isolation and Characterization of Antiangiogenesis Compounds from the Fungus Aspergillus terreus Associated with Apostichopus japonicus Using Zebrafish Assay.

Three compouds, (+)-butyrolactone IV (1), butyrolactone I (2) and terrelactone A (3) were isolated from the fungus Aspergillus terreus associated with Apostichopusjaponicus from the Yellow Sea in China; their structures were elucidated by spectral methods. Compounds I and 2 were shown to have moderate antiangiogenesis activity when tested using-the zebrafish assay. This is the first report of butyrolactones with antiangiogenesis activity.