{"title":"Intramolecular glycosylation to form 4-methoxy-2,6-dioxopyrimidine nucleosides via O6,5'-cyclonucleosides.","authors":"C Castro, C Chen, M E Jung","doi":"10.1080/07328319908044616","DOIUrl":null,"url":null,"abstract":"<p><p>Lewis-acid promoted intramolecular N1 glycosylation to form the novel O6,5'-cyclonucleoside 1a occurs in high yield from the corresponding acyclic thiophenyl-glycoside 12. The relative stability of the O6,5' tether compared with O2,5' and O2,3' tethers is reported. Cleavage of the anhydro bond was effected with aqueous base to yield the 4-methoxybarbituric acid nucleoside analogue 14.</p>","PeriodicalId":19222,"journal":{"name":"Nucleosides & nucleotides","volume":"18 11-12","pages":"2415-23"},"PeriodicalIF":0.0000,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07328319908044616","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nucleosides & nucleotides","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/07328319908044616","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Lewis-acid promoted intramolecular N1 glycosylation to form the novel O6,5'-cyclonucleoside 1a occurs in high yield from the corresponding acyclic thiophenyl-glycoside 12. The relative stability of the O6,5' tether compared with O2,5' and O2,3' tethers is reported. Cleavage of the anhydro bond was effected with aqueous base to yield the 4-methoxybarbituric acid nucleoside analogue 14.
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