Three new polyoxygenated steroids from two species of the South China Sea gorgonian Muricella flexuosa and Menella verrucosa BRUNDIN

Three new polyoxygenated steroids, muricesteroid (1), and menellsteroids A (2) and B (3), were isolated from two species of the South China Sea gorgonian Muricella flexuosa and Menella verrucosa BRUNDIN, respectively The structures of these new compounds were elucidated oil the basis of extensive spectroscopic analysis, chemical methods and comparison with known related compounds.