Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1986-5-14
pubmed:abstractText
A series of 3-methyl-3-(m-hydroxyphenyl)piperidines with N-substituent variations have been synthesized and resolved, and an X-ray crystal structure of one analogue was determined. The compounds have been characterized, pharmacologically, by detailed opiate receptor binding studies and determination of in vivo analgesia and opiate antagonism. The results indicate that all compounds bind with high selectivity and moderate affinity to mu-receptors with no qualitative difference between enantiomeric pairs. By contrast a striking difference in activities is found, with the (-) enantiomers being pure agonists and the (+) enantiomers having both agonist and antagonist activity. The effect of N-substituents on relative agonist and antagonist potency does not mimic that of fused ring opiates with the N-phenethyl compound, the most potent antagonist. These results together with the X-ray structure obtained suggest that agonist and antagonist activity is initiated by a bimodel binding of the compounds in two different orientations at the mu-receptor site.
pubmed:grant
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:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
531-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
N-substituent modulation of opiate agonist/antagonist activity in resolved 3-methyl-3-(m-hydroxyphenyl)piperidines.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.