5-Endo-protected hydroxyl-bicyclo[2,2,1]-heptan-2-ones and process for preparing same
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United States of America Patent
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Jan 1, 1980
Issued Date -
N/A
app pub date -
Dec 2, 1976
filing date -
Dec 3, 1975
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The stereospecific alkylation of a novel 3-endo-protected hydroxyl-tricyclo[3,2,0,0.sup.2,7 ]heptan-6-one is described using a range of lithium-, copper or magnesium-containing organometallic reagents. This reaction provides a 5-endo-protected hydroxyl-bicyclo[2,2,1]-heptan-2-one system from which prostaglandin compounds of the F series having a protecting group at the 9-position hydroxyl group may readily be obtained by a sequence of reactions.
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