Reagents for the Improved Synthesis of Isoguanosine Containing Oligonucleotides
申请人:Prudent James R.
公开号:US20080207890A1
公开(公告)日:2008-08-28
The present invention provides the combination of the O-2 diphenylcarbamoyl (“DPC”) and N-6 dimethy-laminomethylidene (“DMF”) protecting groups for isoguanosine nucleosides that can be utilized in oligonucleotide synthesis.
Synthesis of Phosphonates and Oligodeoxyribonucleotides Derived from 2?-Deoxyisoguanosine and 2?-Deoxy-2-haloadenosines
作者:Frank Seela、Ralf Mertens、Zygmunt Kazimierczuk
DOI:10.1002/hlca.19920750716
日期:1992.11.11
Oligonucleotidescontaining2′-deoxyisoguanosine (1) or 2-chloro-2′-deoxyadenosine (2a) have been prepared by solid-phase synthesis. Suitably protected phosphonates 3a, 4a, and 4b as well as the phosphoramidite of 1 have been obtained from the nucleosides 1, 2a, or 2bvia the (dimethylamino)methylidene derivatives 5–7. 4,4′-Dimethoxytrityl groups were introduced to yield the base-protected derivatives