UNA (unlocked nucleic acid): A flexible RNA mimic that allows engineering of nucleic acid duplex stability
作者:Niels Langkjær、Anna Pasternak、Jesper Wengel
DOI:10.1016/j.bmc.2009.06.045
日期:2009.8
UNA (unlocked nucleicacid) monomers are acyclic derivatives of RNA lacking the C2′–C3′-bond of the ribose ring of RNA. Synthesis of phosphoramidite UNA building blocks of the nucleobases adenine, cytosine, guanine, and uracil is described herein together with their incorporation into RNA strands. UNA monomers additively decrease nucleicacidduplexstability and can be positioned strategically to
Synthesis and Biological Evaluation of Novel Selenonucleosides
作者:Yao Chen、Yingdan Peng、Jiancun Zhang、Lei Fu
DOI:10.1080/15257770802088803
日期:2008.8.11
A series of novel selenonucleoside analogues with 1,4-oxaselenane as the carbohydrate fragment has been synthesized from their corresponding dimesylated seconucleosides treated with NaHSe solution and subsequent deprotection. The synthesized selenonucleoside analogues were evaluated as potential antitumor agents.