Linked Life Data

10780901

Source:http://linkedlifedata.com/resource/pubmed/id/10780901

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2000-5-11
pubmed:abstractText
A series of 3-alkylamino-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1, 1-dioxides structurally related to diazoxide and pinacidil were synthesized and tested as possible K(ATP) channel openers on isolated pancreatic endocrine tissue as well as on isolated vascular, intestinal, and uterine smooth muscle. In contrast to previously described 3-alkylamino-4H-pyrido[4,3-e]-1,2,4-thiadiazine 1, 1-dioxides, most of the new compounds were found to be poorly active on B-cells but exhibited clear vasorelaxant properties. 3-(3, 3-Dimethyl-2-butylamino)-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1, 1-dioxide (4d) and 7-chloro-3-(3, 3-dimethyl-2-butylamino)-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1, 1-dioxide (5d), two compounds bearing the alkyl side chain of pinacidil, were found to be the most active representatives of their respective series on rat aorta rings. 3-Cycloalkylalkylamino- and 3-aralkylamino-7-chloro-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1, 1-dioxides also expressed myorelaxant activity on electrically stimulated guinea pig ileum and on oxytocin-induced contractions of the rat uterus. Further biological investigations ((86)Rb efflux measurements, vasodilator potency on 30 and 80 mM KCl-induced contractions in the absence and presence of glibenclamide) revealed that compounds 4d and 5d, but not compound 5f, expressed the pharmacological profile of classical K(ATP) channel openers. In conclusion, by changing the position of the nitrogen atom in the pyridine ring, we now have obtained a family of drugs expressing an opposite tissue selectivity. Taken as a whole, the present findings also suggest that 3-alkylamino-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1, 1-dioxides such as 4c, 4d, 5c, and 5d may be considered as new examples of K(ATP) channel openers expressing a pharmacological profile similar to that of pinacidil and diazoxide.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1456-66
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:10780901-Animals, pubmed-meshheading:10780901-Aorta, pubmed-meshheading:10780901-Cyclic S-Oxides, pubmed-meshheading:10780901-Diazoxide, pubmed-meshheading:10780901-Drug Design, pubmed-meshheading:10780901-Female, pubmed-meshheading:10780901-Guinea Pigs, pubmed-meshheading:10780901-Ileum, pubmed-meshheading:10780901-Insulin, pubmed-meshheading:10780901-Islets of Langerhans, pubmed-meshheading:10780901-Muscle, Smooth, Vascular, pubmed-meshheading:10780901-Muscle Contraction, pubmed-meshheading:10780901-Pinacidil, pubmed-meshheading:10780901-Potassium Channels, pubmed-meshheading:10780901-Rats, pubmed-meshheading:10780901-Rats, Wistar, pubmed-meshheading:10780901-Structure-Activity Relationship, pubmed-meshheading:10780901-Thiadiazines, pubmed-meshheading:10780901-Uterine Contraction, pubmed-meshheading:10780901-Vasodilator Agents
pubmed:year
2000
pubmed:articleTitle
3-Alkylamino-4H-pyrido[2,3-e]-1,2,4-thiadiazine 1,1-dioxides structurally related to diazoxide and pinacidil as potassium channel openers acting on vascular smooth muscle cells: design, synthesis, and pharmacological evaluation.
pubmed:affiliation
Laboratoire de Chimie Pharmaceutique, Université de Liège, 1, Avenue de l'Hôpital, CHU, tour 4, B-4000 Liège, Belgium. B.Pirotte@ulg.ac.be
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't