Statements in which the resource exists as a subject.
PredicateObject
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: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.