Research output: Contribution to journal › Article › peer-review
New oligodeoxynucleotide derivatives containing N-(methanesulfonyl)-phosphoramidate (mesyl phosphoramidate) internucleotide group. / Chelobanov, B. P.; Burakova, E. A.; Prokhorova, D. V. et al.
In: Russian Journal of Bioorganic Chemistry, Vol. 43, No. 6, 01.11.2017, p. 664-668.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - New oligodeoxynucleotide derivatives containing N-(methanesulfonyl)-phosphoramidate (mesyl phosphoramidate) internucleotide group
AU - Chelobanov, B. P.
AU - Burakova, E. A.
AU - Prokhorova, D. V.
AU - Fokina, A. A.
AU - Stetsenko, D. A.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Novel oligonucleotide derivatives containing N-(methanesulfonyl)-phosphoramidate (mesyl phosphoramidate) group have been described. Solid-phase synthesis of these compounds using an automated DNA synthesizer has been performed for the first time, including the Staudinger reaction between methanesulfonyl azide (mesyl azide) and 3′,5′-dinucleoside 2-cyanoethyl phosphite within an oligonucleotide immobilized on the polymer support, which is a product of phosphoramidite coupling. The mesyl phosphoramidate group is stable to the conditions of oligonucleotide synthesis, in particular, during acidic detritylation and subsequent removal of protecting groups and cleavage of an oligonucleotide from the polymer support by concentrated aqueous ammonia or methylamine at 55°C. It has been shown that the stability of complementary duplexes of oligodeoxynucleotides containing the mesyl phosphoramidate group with a single-stranded DNA is not inferior to the stability of native DNA:DNA duplex. Furthermore, mesyl phosphoramidate oligonucleotides are able to form a complementary duplex with RNA, which is only slightly less stable than the equivalent DNA:RNA duplex. This raises the possibility of their application as potential antisense therapeutic agents.
AB - Novel oligonucleotide derivatives containing N-(methanesulfonyl)-phosphoramidate (mesyl phosphoramidate) group have been described. Solid-phase synthesis of these compounds using an automated DNA synthesizer has been performed for the first time, including the Staudinger reaction between methanesulfonyl azide (mesyl azide) and 3′,5′-dinucleoside 2-cyanoethyl phosphite within an oligonucleotide immobilized on the polymer support, which is a product of phosphoramidite coupling. The mesyl phosphoramidate group is stable to the conditions of oligonucleotide synthesis, in particular, during acidic detritylation and subsequent removal of protecting groups and cleavage of an oligonucleotide from the polymer support by concentrated aqueous ammonia or methylamine at 55°C. It has been shown that the stability of complementary duplexes of oligodeoxynucleotides containing the mesyl phosphoramidate group with a single-stranded DNA is not inferior to the stability of native DNA:DNA duplex. Furthermore, mesyl phosphoramidate oligonucleotides are able to form a complementary duplex with RNA, which is only slightly less stable than the equivalent DNA:RNA duplex. This raises the possibility of their application as potential antisense therapeutic agents.
KW - antisense oligonucleotides
KW - methanesulfonyl azide
KW - solid-phase synthesis
KW - Staudinger reaction
KW - THERAPEUTICS
KW - OLIGODEOXYRIBONUCLEOTIDE
UR - http://www.scopus.com/inward/record.url?scp=85041585223&partnerID=8YFLogxK
U2 - 10.1134/S1068162017060024
DO - 10.1134/S1068162017060024
M3 - Article
AN - SCOPUS:85041585223
VL - 43
SP - 664
EP - 668
JO - Russian Journal of Bioorganic Chemistry
JF - Russian Journal of Bioorganic Chemistry
SN - 1068-1620
IS - 6
ER -
ID: 9640991