Novel P(III) bisamidite reagents as phosphorus protecting groups, nucleoside phosphoramidite intermediates, and synthetic processes for making the same are disclosed. Furthermore, oligomeric compounds are prepared through the protection of one or more internucleosidic phosphorus functionalities, preferably followed by oxidation and cleavage of the protecting groups to provide oligonucleotides.
Novel phosphate and thiophosphate protecting groups
申请人:——
公开号:US20040082774A1
公开(公告)日:2004-04-29
Novel P(III) bisamidite reagents as phosphorus protecting groups, nucleoside phosphoramidite intermediates, and synthetic processes for making the same are disclosed. Furthermore, oligomeric compounds are prepared through the protection of one or more internucleosidic phosphorus functionalities, preferably followed by oxidation and cleavage of the protecting groups to provide oligonucleotides. Methods for preparing oligoribonucleotides are also disclosed.
[EN] NOVEL PHOSPHATE AND THIOPHOSPHATE PROTECTING GROUPS<br/>[FR] NOUVEAUX GROUPES PROTECTEURS DE PHOSPHATE ET DE THIOPHOSPHATE
申请人:ISIS PHARMACEUTICALS INC
公开号:WO2000055179A1
公开(公告)日:2000-09-21
Novel P(III) bisamidite reagents as phosphorus protecting groups, nucleoside phosphoramidite intermediates, and synthetic processes for making the same are disclosed. Furthermore, oligomeric compounds are prepared through the protection of one or more internucleosidic phosphorus functionalities, preferably followed by oxidation and cleavage of the protecting groups to provide oligonucleotides. The figure shows nucleoside phosphoramidites bearing [2-[N-isopropyl-N-(4-methoxybenzoyl) amino] ethyl] phosphate protecting groups.