Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2001-6-26
pubmed:abstractText
Four new conformationally restricted hybrid analogues of the hormone 1 alpha-25-dihydroxyvitamin D(3) (1,25D3) have been synthesized in a convergent manner by combining enantiomerically pure C,D-ring ketones (-)-15 and (-)-17 with racemic 1-hydroxymethyl A-ring phosphine oxide (+/-)-18. Parent hybrid analogue 6, which combines the calcemia-inactivating 1 beta-hydroxymethyl A-ring modification with the antiproliferation- activating 20-epi-22-oxa-25-hydroxydiethyl C,D-ring side chain modification, is comparable in potency to 1,25D3 at the low nM level in inhibiting proliferation in a wide assortment of malignant cell lines in vitro with extremely low calcemic activity in vivo. Surprisingly, both conformationally restricted analogues of 6 (8b and 9b), which incorporate rigidifying units at their 25-hydroxyl side chain termini, retained the desirable antiproliferative, transcriptional, and calcemic activities of the parent compound.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0968-0896
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1691-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Conformationally restricted hybrid analogues of the hormone 1 alpha,25-dihydroxyvitamin D(3): design, synthesis, and biological evaluation.
pubmed:affiliation
Department of Chemistry, The Johns Hopkins University, Baltimore, MD 21218, USA. white@ascat.harvard.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't