Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1980-9-26
pubmed:abstractText
N-Methylspiro[5-hydroxytetralin-1,3'-pyrrolidine] (2j) and N-methylspiro[7-hydroxytetralin-1,3'-pyrrolidine] (2n), conformationally restricted analogues of profadol, were synthesized via initial reaction of the appropriately substituted 1-tetralone with ethyl cyanoacetate to give the ethyl 1-tetralylidenecyanoacetate derivative (3), which was then reacted with KCN to give the corresponding 1-cyano-1-(cyanomethyl)tetralin (4). Treatment of 4 with either HBr in dry ether-dichloromethane or acetic acid-sulfuric acid afforded the spiro[tetralin-1,3'-pyrrolidine-2',5'-dione] derivative (5), which was then reduced with LiAlH4-THF and N-methylated with HCHO-HCO2H to give the appropriately substituted spiro[tetralin-1,3'-pyrrolidine] (2). Both 2j and 2n and the isomeric 6-hydroxy derivative 21 all showed no significant analgesic activity in hot-plate and writhing tests. However, spiro[tetralin-1,3'-pyrrolidine] (2a) and its N-methyl derivative (2b) both possessed codeine-level analgesic activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-2623
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
679-82
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Synthesis and analgesic properties of some conformationally restricted analogues of profadol.
pubmed:publicationType
Journal Article