Linked Life Data

11429833

Source:http://linkedlifedata.com/resource/pubmed/id/11429833

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-6-29
pubmed:abstractText
A short stereoselective synthesis of N-acylamino-1,3-dienes was developed starting from the cyclobutene lactam 8, which was obtained from 2-hydroxypyridine by a photochemical electrocyclic reaction. The tert-butoxycarbonyl derivative 17 was prepared to facilitate nucleophilic attacks to the carbonyl group, and the subsequent thermal ring opening provided dienes 18-21. One of these (20) was used in the synthesis of the cyclohexene nucleoside 30. A Diels-Alder reaction between diene 20 and maleic anhydride provided the endo-cycloadduct 22a. Three additional steps yielded amine 26. Construction of the uracil moiety afforded intermediate 29. Cyclization and removal of the protecting groups occurred in one step in the presence of ammonia, giving the target molecule 30. Diene 20 also underwent [4 + 2] cycloaddition with methyl acrylate to provide predominantly the endo-product 23a, regioselectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-3263
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
583-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
A short stereoselective preparation of dienamides from cyclobutene compounds. Application in the synthesis of a new cyclohexene nucleoside.
pubmed:affiliation
Laboratoire de Synthèse Organique, UMR CNRS 6011, Faculté des Sciences, Université du Maine, Avenue Olivier Messiaen, F-72085 Le Mans, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't