Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1995-5-11
pubmed:abstractText
The synthesis of 6-substituted 5-(thienylvinyl)imidazo[2,1-b]thiazoles and 6-thienylimidazo[2,1-b]thiazoles is reported. These compounds were tested as specific inhibitors of the NADH: ubiquinone (UBQ) reductase activity of NADH dehydrogenase in mitochondrial membranes. The 6-thienylimidazo[2,1-b]thiazoles were more potent in mammalian than in nematode mitochondria and had an average titer of 0.11 mM for 2-methyl-6-(2-thienyl)imidazo[2,1-b]thiazole (10). This compound is noncompetitive with the ubiquinone substrate and interacts with a site which is mutually exclusive with that of rotenone but nonexclusive with that of piericidin and several other inhibitors of NADH dehydrogenase. In the series of 5-(thienylvinyl)imidazothiazoles, the hydrobromide of (E)-6-chloro-5-(2-thienylvinyl)imidazo[2,1-b]thiazole (E-5.HBr) was found to be more potent as an inhibitor of the NADH:UBQ activity (IC50 = 15-17 microM) than the 6-thienylimidazoles such as 10. The inhibitory action of E-5.HBr and its analogs is different from that of compound 10 as indicated by the mutual exclusivity with other inhibitors and the relative inhibition of the activity with various electron acceptors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1090-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Thienylimidazo[2,1-b]thiazoles as inhibitors of mitochondrial NADH dehydrogenase.
pubmed:affiliation
Dipartimento di Scienze Farmaceutiche, Università di Bologna, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't