Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-1-15
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1523-7060
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
269-71
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
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.
pubmed:affiliation
Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122-2585, USA. john.r.williams@temple.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't