Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1995-9-1
pubmed:abstractText
A series of substituted 5-tert-butyl-2-phenyl-1,3-dithianes and 5-tert-butyl-2-phenyl-1,1,3,3-tetraoxo-1,3-dithianes was synthesized as ligands for the GABAA receptor complex-associated neuronal chloride ion channels. The in vitro binding affinities of these compounds for the GABA-gated chloride ion channel were determined by their ability to compete with [3H]TBOB for binding to rat brain slices. Of the eight compounds tested, trans-5-tert-butyl-2-(4-cyanophenyl)-2-methyl-1,1,3,3-tetraoxo+ ++-1,3-dithiane, 9b, trans-5-tert-butyl-2-(4-fluorophenyl)-1,1,3,3-tetraoxo-1,3-dithian e, 10, and trans-5-tert-butyl-2-(4-iodophenyl)-2-methyl-1,1,3,3-tetraoxo-1,3- dithiane, 11, showed moderately high binding affinities (Ki = 41, 180, and 105 nM, respectively). Four radioligand candidates from this series, 5-tert-butyl-2-(4-cyanophenyl)-2-[11C]methyl-1,3-dithiane, [11C]6, 5-tert-butyl-2-(4-[18F]fluorophenyl)-1,3-dithiane, [18F]7, 5-tert-butyl-2-(4-[18F]-fluorophenyl)-1,1,3,3-tetraoxo-1,3- dithiane, [18F]10, and 5-tert-butyl-2-(4-[125I]iodophenyl)-2-methyl-1,1,3,3- tetraoxo-1,3-dithiane, [125I]11, have been successfully prepared for evaluation as in vivo imaging agents useful for positron emission tomography and single photon emission computed tomography. Preliminary in vivo studies indicate significant uptake into mouse brain for [18F]7, [18F]10, and [125I]11.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2663-71
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Synthesis of carbon-11-, fluorine-18-, and iodine-125-labeled GABAA-gated chloride ion channel blockers: substituted 5-tert-butyl-2-phenyl-1,3-dithianes and -dithiane oxides.
pubmed:affiliation
Division of Nuclear Medicine, University of Michigan Medical School, Ann Arbor, USA.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.