New 4-methylated and 19-oxygenated steroids from the Formosan soft coral Nephthea erecta |
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| Authors: | Cheng Shi-Yie Dai Chang-Feng Duh Chang-Yih |
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| Institution: | Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan. |
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| Abstract: | Two new 4-methylated steroids, erectasteroids A and B (1 and 2), six new 19-oxygenated steroids, erectasteroids C-H (3-8) and two known 19-oxygenated steroids (9 and 10) were isolated from the acetone solubles of the Formosan soft coral Nephthea erecta. The structures were elucidated by extensive NMR spectroscopic analysis and their cytotoxicity against selected cancer cells was measured in vitro. |
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| Keywords: | Nephthea erecta Cytotoxicity |
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