Process for the synthesis of sphingosine
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United States of America Patent
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Feb 8, 2005
Grant Date -
Sep 11, 2003
app pub date -
Dec 20, 2002
filing date -
Dec 20, 2001
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Abstract
This invention relates to a method for the production of a sphingoid base according to formula ##STR1## comprising the steps of (1) dissolving a starting compound according to formula III or a salt thereof in a substantially inert solvent, ##STR2## (2) protecting the NH.sub.2 group with a NH.sub.2 protecting group, (3) activating the C-4 HR.sup.3 group for an elimination reaction with the C-5 HR.sup.4 group, (4) causing an elimination reaction to take place to form a double bond between the C-4 and C-5 carbon atom, and (5) removing the NH.sub.2 protecting group.
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