Two new 9(11)-secogorgosterols containing oxirane rings at the C-5/C-6 posi
tion (1 and 2) were isolated from Pseudopterogorgia americana along with a
known secogorgosterol (3). The structures were elucidated using detailed sp
ectroscopic studies and the epoxysecosteroids were found to exhibit activit
y against prostate (LnCaD) and lung cancer (Calu-3) cell lines. (C) 2000 El
sevier Science Ltd. All rights reserved.