Pseudopterogorgia elisabethae is a known source of structurally interesting bioactive
metabolites. A detailed search for new, related compounds was undertaken in this study
which resulted in the isolation and characterization of more than ten new diterpenes with
serrulatane and ileabethane skeletons. Some of the new compounds isolated are closely
related terpenes with significant biological activity and others are likely to be key
biosynthetic intermediates. As a component of the development of a production method
of anti-inflammatory compounds such as seco-pseudopterosin and elisabethadione, a
synthesis of a seco-pseudoperosin aglycone from elisabethatriene was developed.