Process for preparing lysergol derivatives
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United States of America Patent
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Sep 26, 1989
Grant Date -
N/A
app pub date -
Aug 7, 1985
filing date -
Aug 7, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of preparing lysergol derivatives, particularly 10.alpha.-methoxy lumilysergol, 1-methyl-10.alpha.-methoxy-lumilysergol and C8 esters of 1-methyl-10.alpha.-methoxy-lumilysergol, is provided characterized in that lysergol esters are subjected to photo-chemical reaction in methanol/sulphuric acid to form esters of 10.alpha.-methoxy lumilysergol. The esters can be subsequently hydrolyzed to obtain 10.alpha.-methoxy-lumilysergol, or can be transesterified with salts of other acids and/or N-methylated.
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