[EN] 2'-O-AMINOOXYMETHYL NUCLEOSIDE DERIVATIVES FOR USE IN THE SYNTHESIS AND MODIFICATION OF NUCLEOSIDES, NUCLEOTIDES AND OLIGONUCLEOTIDES<br/>[FR] DÉRIVÉS DE 2'-O-AMINOOXYMÉTHYL NUCLÉOSIDE POUR L'UTILISATION DANS LA SYNTHÈSE ET LA MODIFICATION DE NUCLÉOSIDES, NUCLÉOTIDES ET OLIGONUCLÉOTIDES
申请人:US HEALTH
公开号:WO2012138530A1
公开(公告)日:2012-10-11
Disclosed are O-protected compounds of the formula (I):wherein B is an optionally protected nucleobase, and R1-R3 are as described herein, a method of preparing such compounds, and a method of preparing oligonucleotides such as RNA starting from such compounds. The O-protected compounds have one or more advantages, for example, the 2'-O-protected compound is stable during the various reaction steps involved in oligonucleotide synthesis; the protecting group can be easily removed after the synthesis of the oligonucleotide, for example, by reaction with tetrabutylammonium fluoride; and/or the O-protected groups do not generate DNA/RNA alkylating side products, which have been reported during removal of 2'-O-(2-cyanoethyl)oxymethyl or 2'-O-[2-(4-tolylsulfonyl)ethoxymethyl groups under similar conditions.
揭示了公式(I)中的O-保护化合物:其中B是可选择保护的核碱基,R1-R3如本文所述,一种制备这种化合物的方法,以及一种从这种化合物开始制备寡核苷酸(如RNA)的方法。这些O-保护化合物具有一个或多个优点,例如,2'-O-保护化合物在寡核苷酸合成中涉及的各种反应步骤中是稳定的;保护基在寡核苷酸合成后可以轻松去除,例如,通过与四丁基氟化铵反应;和/或O-保护基在类似条件下去除2'-O-(2-氰乙基)氧甲基或2'-O-[2-(4-甲苯磺酰基)乙氧甲基基团时不会产生已报道的DNA/RNA烷基化副产物。