Novel Terpenoids from the Formosan Soft Coral <i>Cespitularia hypotentaculata</i>

Chang‐Yih Duh, Ali A. El‐Gamal, Shang‐Kwei Wang, Chang‐Feng Dai

Journal of Natural Products · 2002 · 48 citations · 0 references

Concepts

Abstract

Four new cytotoxic diterpenes, cespitularins A-D (1-4), having the verticillane skeleton, a new cytotoxic norditerpene, cesputularin E (5), that possesses a novel norverticillane skeleton, and three new diterpenes, cespitularins F-H (6-8), possessing a novel carbon skeleton named cespitularane, were isolated from the methylene chloride solubles of the Formosan soft coral Cespitularia hypotentaculata. The structures of cespitularins A-H (1-8) were elucidated by 1D and 2D NMR spectral analysis, and their cytotoxicity against selected cancer cells was measured in vitro.