Glucose-Derived 3‘-(Carboxymethyl)-3‘-deoxyribonucleosides and 2‘,3‘-Lactones as Synthetic Precursors for Amide-Linked Oligonucleotide Analogues1
摘要:
Treatment of a 1,2-O-isopropylidene-3-ketopentofuranose derivative (obtained from D-glucose) with [(ethoxycarbonyl)methylene]triphenylphosphorane and catalytic hydrogenation of the resulting alkene gave stereodefined access to 3-(carboxymethyl)-3-deoxy-D-ribofuranose derivatives. Esters of 5-O-acetyl- or 5-azido-5-deoxy-3-(carboxymethyl)-D-ribofuranose were coupled with nucleobases to give branched-chain nucleoside derivatives. Ester saponification and protecting group manipulation provided 2'-O-(tert-butyldimethylsilyl) ethers of 5'-azido-5'-deoxy- or 5'-O-(dimethoxytrityl) derivatives of 3'-(carboxymethyl)-3'-deoxyribonucleosides that are effective precursors for synthesis of amide-linked oligoribonucleosides.
Glucose-Derived 3‘-(Carboxymethyl)-3‘-deoxyribonucleosides and 2‘,3‘-Lactones as Synthetic Precursors for Amide-Linked Oligonucleotide Analogues1
摘要:
Treatment of a 1,2-O-isopropylidene-3-ketopentofuranose derivative (obtained from D-glucose) with [(ethoxycarbonyl)methylene]triphenylphosphorane and catalytic hydrogenation of the resulting alkene gave stereodefined access to 3-(carboxymethyl)-3-deoxy-D-ribofuranose derivatives. Esters of 5-O-acetyl- or 5-azido-5-deoxy-3-(carboxymethyl)-D-ribofuranose were coupled with nucleobases to give branched-chain nucleoside derivatives. Ester saponification and protecting group manipulation provided 2'-O-(tert-butyldimethylsilyl) ethers of 5'-azido-5'-deoxy- or 5'-O-(dimethoxytrityl) derivatives of 3'-(carboxymethyl)-3'-deoxyribonucleosides that are effective precursors for synthesis of amide-linked oligoribonucleosides.
Glucose-Derived 3‘-(Carboxymethyl)-3‘-deoxyribonucleosides and 2‘,3‘-Lactones as Synthetic Precursors for Amide-Linked Oligonucleotide Analogues<sup>1</sup>
作者:Morris J. Robins、Bogdan Doboszewski、Victor A. Timoshchuk、Matt A. Peterson
DOI:10.1021/jo991399g
日期:2000.5.1
Treatment of a 1,2-O-isopropylidene-3-ketopentofuranose derivative (obtained from D-glucose) with [(ethoxycarbonyl)methylene]triphenylphosphorane and catalytic hydrogenation of the resulting alkene gave stereodefined access to 3-(carboxymethyl)-3-deoxy-D-ribofuranose derivatives. Esters of 5-O-acetyl- or 5-azido-5-deoxy-3-(carboxymethyl)-D-ribofuranose were coupled with nucleobases to give branched-chain nucleoside derivatives. Ester saponification and protecting group manipulation provided 2'-O-(tert-butyldimethylsilyl) ethers of 5'-azido-5'-deoxy- or 5'-O-(dimethoxytrityl) derivatives of 3'-(carboxymethyl)-3'-deoxyribonucleosides that are effective precursors for synthesis of amide-linked oligoribonucleosides.