Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5-7
pubmed:dateCreated
2005-10-26
pubmed:abstractText
We wish to report 4,5-bis(ethoxycarbonyl)-[1,3]dioxolan-2-yl as a new protecting for the 2'-hydroxyl function. Our cyclic orthoester-type group is compatible with the DMTr strategy for oligonucleotide synthesis. This group was introduced to the 2'-hydroxyl group of appropriately protected nucleoside derivatives in good yields under mild acidic conditions. Post-synthetic conversion of the moiety of this protecting group with an amine resulted in formation of a new amide moiety that is more stable to acid deprotection in aqueous solution, but it can still be easily removed by treatment with acids in organic solvents. In this article, we also describe the stability of not only the original and modified protecting groups but also internucleotidic phosphate linkages of protected RNA intermediates under deprotection conditions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-7770
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1111-4
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
4,5-bis(ethoxycarbonyl)-[1,3]dioxolan-2-yl as a new orthoester-type protecting group for the 2'-hydroxyl function in the chemical synthesis of RNA.
pubmed:affiliation
Department of Life Science, Tokyo Institute of Technology, Japan and JST (Japan Science and Technology Corporation), Japan. karwowski@cea.fr
pubmed:publicationType
Journal Article