3-Deaza-2′-deoxyadenosine: Synthesis via 4-(methylthio)-1H-imidazo[4,5-c]pyridine 2′-deoxyribonucleosides and properties of oligonucleotides
✍ Scribed by Frank Seela; Thomas Grein; Samuel Samnick
- Book ID
- 102860369
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- German
- Weight
- 654 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The synthesis of 4‐(methylthio)‐1__H__‐imidazo[4,5‐c]pyridine 2′‐deoxy‐β‐D‐ribonucleosides 2 and 9 and the conversion of the N^1^‐isomer 2 into the 2′,3′‐didehydro‐2′,3′‐dideoxyribonucleoside 3a or (via 7) 3‐deaza‐2′‐deoxyadenosine (1) is described. Phosphonate building blocks of 1 were employed in solid‐phase synthesis of self‐complementary base‐modified oligonucleotides. Their properties were studied with regard to duplex stability and hydrolysis by the restriction enzyme Eco RI.
📜 SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The convergent syntheses of 3‐deazapurine 2′‐deoxy‐β‐D‐ribonucleosides and 2′,3′‐dideoxy‐D‐ribonucleosides, including 3‐deaza‐2′‐deoxyadenosine (1a) and 3‐deaza‐2′,3′‐dideoxyadenosine (1b) is described. The 4‐chloro‐l__H__‐imidazo[4,5‐c]pyridinyl anion derived from 5 was reacted with ei
## Abstract A new synthetic route to 6‐substituted‐imidazo[4,5‐__c__]pyridin‐2‐ons from 4‐aminopyridine has been investigated. 4‐Aminopyridine protected as alkyl carbamates were nitrated with dinitrogen pentoxide to the corresponding methyl, __i__‐propyl and __t__‐butyl 3‐nitropyridin‐4‐yl carbamat