Biosynthesis of dihydrosphingosine in vitro.
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Biomedical subjects
Publications and source records attributed to W Stoffel.
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A general procedure for the synthesis of 2-trans polyenoic fatty acids and of dl-3-hydroxypolyenoic acids is described. The 2-trans acids are prepared by LiAlH(4) reduction of a suitable polyenoic fatty acid ester to the alcohol, formation of the tosylate, oxidation to the aldehyde, and Doebner condensation of the latter with malonic acid. The 3-hydroxy acids are obtained by reaction of the acyl chloride of a suitable polyenoic acid with the sodium enolate of methyl acetoacetate and sodium methoxide to give the 3-keto ester, the keto group of which is reduced with sodium borohydride to the alcohol. These procedures were applied to the synthesis of eicosa-2-trans-8, 11, 14-all cis-tetraenoic acid-3-(14)C and DL-3-hydroxy eicosa-8, 11, 14-trienoic acid-3-(14)C.
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