Marine sterols. XIII. Isolation and synthesis of 1β,3β,5,6β-tetrahydroxy-5α-androstan-17-one from the soft coral |
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Authors: | Masaru Kobayashi Hiroshi Mitsuhashi |
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Abstract: | A minor C27 sterol, glaucasterol, was isolated from the soft coral Based on the spectroscopic evidence and the correlation to cholestanol and 26-nor-27-homocholestanol, its structure was proposed to be 24ξ, 25ξ-24,26-cyclocholesta-5,22E-dien-3β-ol (), the first example of a natural C27 sterol having a cyclopropane ring in the side chain. |
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