Marine cyanobacteria have been shown to produce a variety of biologically active and stucturally diverse secondary metabolites. These compounds are of interest to natural products researchers mainly because of their po ...

Three approaches toward the core of halichlorine and pinnaic acid are described. The first approach entails a racemic transannular nitrone-olefin [3+2] cycloaddition from nitrone 238. Construction of the nitrone 238 bega ...