Source:http://linkedlifedata.com/resource/pubmed/id/14723545
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2004-1-15
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pubmed:abstractText |
[reaction: see text] (25R)-5alpha-cholesta-3beta,16alpha,26-triol 7b and (25R)-5alpha-cholesta-3beta,15alpha,26-triol 10b were synthesized, via (25R)-5alpha-cholesta-3beta,16beta,26-triol 5a, from diosgenin 3 in 52% yield over six steps and 47% yield over eight steps, respectively. An efficient method for inversion of a C-16beta hydroxyl to the C-16alpha position and a short method for transposition of a C-16beta hydroxyl to the C-15alpha position via the unexpected beta-reduction of a C-15 ketone in a steroid are reported.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
1523-7060
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
269-71
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:14723545-Cholesterol,
pubmed-meshheading:14723545-Crystallography, X-Ray,
pubmed-meshheading:14723545-Diosgenin,
pubmed-meshheading:14723545-Hydroxycholesterols,
pubmed-meshheading:14723545-Hydroxylation,
pubmed-meshheading:14723545-Models, Molecular,
pubmed-meshheading:14723545-Molecular Conformation
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pubmed:year |
2004
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pubmed:articleTitle |
Alpha-hydroxylation at C-15 and C-16 in cholesterol: synthesis of (25R)-5alpha-cholesta-3beta,15alpha,26-triol and (25R)-5alpha-cholesta-3beta,16alpha,26-triol from diosgenin.
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pubmed:affiliation |
Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122-2585, USA. john.r.williams@temple.edu
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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