Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1982-8-7
|
pubmed:abstractText |
Enantiomers of beta-1,2-dimethyl-4-phenyl-4-(propionyloxy)piperidine (4) were employed as probes to demonstrate that opioid receptors are capable of distinguishing between the enantiotopic edges (the Ogston effect) of the piperidine ring. These enantiomers, (-)- and (+)-4.HCl, were prepared by esterification of the corresponding alcohols, (+)- and (-)-4a. Single crystal X-ray studies of (-)-4a.HCl reveal that it possesses the 2R,4S absolute configuration. Analgetic testing in mice (hot-plate) and receptor binding studies indicate that (-)-(2S,4R)-4.HCl is approximately ten times more potent than its enantiomer. The results are consistent with the operation of the Ogston effect in the interaction of achiral 4-phenylpiperidines with opioid receptors. Additionally, it is suggested that the piperidine ring of these and other closely related 4-phenylpiperidines bind within a receptor subsite cleft whose dimensions exclude diequatorial 2,6- and 3,5-dimethyl-substituted ligands.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0022-2623
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
25
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
9-12
|
pubmed:dateRevised |
2008-11-21
|
pubmed:meshHeading |
pubmed-meshheading:6283082-Analgesics,
pubmed-meshheading:6283082-Animals,
pubmed-meshheading:6283082-Chemical Phenomena,
pubmed-meshheading:6283082-Chemistry,
pubmed-meshheading:6283082-Guinea Pigs,
pubmed-meshheading:6283082-Piperidines,
pubmed-meshheading:6283082-Receptors, Opioid,
pubmed-meshheading:6283082-Stereoisomerism,
pubmed-meshheading:6283082-Structure-Activity Relationship
|
pubmed:year |
1982
|
pubmed:articleTitle |
Stereochemical studies on medicinal agents. 25. Absolute configuration and analgetic potency of beta-1,2-dimethyl-2-phenyl-4-(propionyloxy)piperidine enantiomers.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|