AROMATIC COMPOUND, MODIFICATION CARRIER THAT USES SAME AND IS USED FOR SYNTHESIZING AN OLIGONUCLEOTIDE DERIVATIVE, OLIGONUCLEOTIDE DERIVATIVE, AND OLIGONUCLEOTIDE CONSTRUCT
AROMATIC COMPOUND, MODIFICATION CARRIER THAT USES SAME AND IS USED FOR SYNTHESIZING AN OLIGONUCLEOTIDE DERIVATIVE, OLIGONUCLEOTIDE DERIVATIVE, AND OLIGONUCLEOTIDE CONSTRUCT
AROMATIC COMPOUND, MODIFICATION CARRIER THAT USES SAME AND IS USED FOR SYNTHESIZING AN OLIGONUCLEOTIDE DERIVATIVE, OLIGONUCLEOTIDE DERIVATIVE, AND OLIGONUCLEOTIDE CONSTRUCT
申请人:Kitade Yukio
公开号:US20120245341A1
公开(公告)日:2012-09-27
The present invention provides an oligonucleotide derivative that enables to easily synthesize an oligonucleotide derivative chemically modified at the 3′-end with two moieties each having a benzene or pyridine structure with a few steps, an aromatic compound serving as a precursor for preparing the modification carrier for synthesizing oligonucleotide derivative, and the oligonucleotide derivative and the oligonucleotide construct using the same, that is chemically modified at the 3′-end with two moieties each having a benzene or pyridine structure, and has good permeability through a cell membrane and excellent nuclease resistance. The modification carrier for synthesizing oligonucleotide derivative, comprising a unit and a carrier carrying the unit directly or via a linker, wherein the unit is represented by the formula (a): wherein, R
1
to R
6
each independently represent hydrogen or a substituent other than hydrogen; Z
1
and Z
2
each independently represent CH or nitrogen; and X represents oxygen or sulfur.
Oligonucleotide derivative comprising an aromatic compound
申请人:Kitade Yukio
公开号:US08633304B2
公开(公告)日:2014-01-21
The present invention provides an oligonucleotide derivative that enables to easily synthesize an oligonucleotide derivative chemically modified at the 3′-end with two moieties each having a benzene or pyridine structure with a few steps, an aromatic compound serving as a precursor for preparing the modification carrier for synthesizing oligonucleotide derivative, and the oligonucleotide derivative and the oligonucleotide construct using the same, that is chemically modified at the 3′-end with two moieties each having a benzene or pyridine structure, and has good permeability through a cell membrane and excellent nuclease resistance. The modification carrier for synthesizing oligonucleotide derivative, comprising a unit and a carrier carrying the unit directly or via a linker, wherein the unit is represented by the formula (a): wherein, R1 to R6 each independently represent hydrogen or a substituent other than hydrogen; Z1 and Z2 each independently represent CH or nitrogen; and X represents oxygen or sulfur.
We have developed chemically modified siRNAs and miRNAs bearing urea/thiourea-bridged aromatic compounds at their 3'-end for RNAi therapy. Chemically modified RNAs possessing urea/thiourea-bridged aromatic compounds instead of naturally occurring dinucleotides at the 3'-overhang region were easily prepared in good yields and were more resistant to nucleolytic hydrolysis than unmodified RNA. siRNAs containing urea or thiourea derivatives showed the desired knockdown effect. Furthermore, modified miR-143 duplexes carrying the urea/thiourea compounds in the 3'-end of each strand were able to inhibit the growth of human bladder cancer T24 cells. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
US8633304B2
申请人:——
公开号:US8633304B2
公开(公告)日:2014-01-21
[EN] AROMATIC COMPOUND, MODIFICATION CARRIER THAT USES SAME AND IS USED FOR SYNTHESIZING AN OLIGONUCLEOTIDE DERIVATIVE, OLIGONUCLEOTIDE DERIVATIVE, AND OLIGONUCLEOTIDE CONSTRUCT<br/>[FR] COMPOSÉ AROMATIQUE, VECTEUR DE MODIFICATION QUI UTILISE CELUI-CI ET EST UTILISÉ POUR SYNTHÉTISER UN DÉRIVÉ D'OLIGONUCLÉOTIDE, DÉRIVÉ D'OLIGONUCLÉOTIDE, ET CONSTRUCTION D'OLIGONUCLÉOTIDE