Marine sterols—II : Asterosterol,a new C26 sterol from Asterias amurensis lütken |
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| Authors: | M Kobayashi R Tsuru K Todo H Mitsuhashi |
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| Institution: | Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060, Japan |
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| Abstract: | Asterosterol, a new marine C26 sterol, was isolated from the asteroid, A. amurensis, and its structure was characterized as 22-trans-24-nor-5α-cholesta-7,22-dien-3β-ol (1). Episterol (9), 22-trans-(24R)-24-methylcholesta-7,22-dien-3β-ol (stellasterol, 3) and 22-trans-cholesta-7,22-dien-3β-ol (7) were also isolated and their structures were confirmed. |
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