✦ LIBER ✦

Synthesis of 2′-O-[2-[(N,N-dialkylamino)oxy]ethyl]-modified oligonucleotides: hybridization affinity, resistance to nuclease, and protein binding characteristics

✍ Scribed by Thazha P Prakash; Andrew M Kawasaki; Elena A Lesnik; Namir Sioufi; Muthiah Manoharan

Book ID: 104205662
Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 226 KB
Volume: 59
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(03)01104-9

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✦ Synopsis

Synthesis of a series of 2 0 -O-[2-[(N,N-dialkylamino)oxy]ethyl]-modified 5-methyluridine nucleoside phosphoramidites and solid supports are described. Using these monomers, modified oligonucleotides containing phosphodiester linkages were synthesized in high yields. These modified oligonucleotides showed enhanced binding affinity to the complementary RNA (and not to DNA) and excellent nuclease stability with t 1/2 .24 h. The human serum albumin binding properties of modified oligonucleotides have been evaluated to assess their transport and toxicity properties.

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