Weiss B, Stiller RL. Synthesis of threo-4,5-dihydroxy diastereomers of sphinganine;.
Chem Phys Lipids 1975;
14:59-71. [PMID:
165009 DOI:
10.1016/0009-3084(75)90016-x]
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Abstract
The threo-4,5-dihydroxy diastereomers of sphinganine were prepared by the following sequence of reactions: (a) benzoylation of sphingenine to the tribenzoyl derivative; (b) osmylation followed by resolution of the mixture of threo-4,5-dihydroxy tribenzoyl (DHTBS) diastereomers; and (c) alkaline hydrolysis to yield the threo-4,5-dihydroxysphinganines (DHS). Carbon atoms 4 and 5 of the high and low melting threo-4,5-DHTBS diastereomers and the compounds derived from them were tentatively assigned 4R, 5S and 5R configurations, respectively;
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