Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1983-4-15
pubmed:abstractText
In order to obtain a better understanding of the effects that structural parameters have on the changes of adrenergic activity when 1-aryl-2-aminoethanol derivatives are converted into their corresponding 2-arylmorpholine cyclic analogues, we synthesized 1-(2,5-dimethoxyphenyl)-2-aminoethanol derivatives 5-7 and their morpholine analogues 8-10. The preferred conformation of amino alcohols and their cyclic analogues have been determined through an H NMR and IR study. Compounds 5 and 6 showed both alpha-stimulating and alpha-blocking activity on rat vas deferens, the effect depending on the concentration employed; on the same isolated tissue, N-isopropyl derivative 7 and the morpholine analogues 8-10 exhibited only alpha-blocking activity. As for the beta-adrenergic activity, only the open-chain compound 7 possessed a moderate blocking effect on isolated guinea pig atria. The results of this work seem to indicate that the changes of pharmacological activity involved in the transformation of the adrenergic drugs into their morpholine analogues are influenced more by characteristic features of the aromatic moiety than by the ethanolamine or propanolamine structure of the drugs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
254-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Conformational effects on the activity of drugs. 10. Synthesis, conformation, and pharmacological properties of 1-(2,5-dimethoxyphenyl)-2-aminoethanols and their morpholine analogues.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't