Structure of a New Type of Indoloditerpenoid from Emericella Purpurea.

The structure and relative stereochemistry of a new type of indoloditerpenoid designated as emindole PA 1, isolated from the mycelium of Emericella purpurea, along with the sesterterpene variecolin recently isolated from Emericella variecolor, has been confirmed by a chemical and spectroscopic investigation.