Detailed chemical studies of the methanolic extract of Pseudopterogorgia el
isabethae, collected from the Florida Keys, have resulted in the isolation
of elisabethamine (1), a new diterpene alkaloid. Its structure was establis
hed with the aid of extensive spectroscopic studies. Compound 1 exhibited c
ytotoxicity against lung and prostate cancer cell lines as determined by an
MITT assay. (C) 2000 Elsevier Science Ltd. All rights reserved.