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    Oligonucleotides comprising a non-phosphate backbone linkage
    61.
    发明授权
    Oligonucleotides comprising a non-phosphate backbone linkage 有权
    包含非磷酸骨架键的寡核苷酸

    公开(公告)号：US08013136B2

    公开(公告)日：2011-09-06

    申请号：US12496268

    申请日：2009-07-01

    申请人： Muthiah Manoharan ,  Kallanthottathil G. Rajeev

    发明人： Muthiah Manoharan ,  Kallanthottathil G. Rajeev

    IPC分类号： C07H21/02 ,  C07H21/04

    CPC分类号： C12N15/111 ,  C07H19/04 ,  C07H19/12 ,  C07H19/16 ,  C07H19/167 ,  C07H19/173 ,  C07H21/02 ,  C12N15/1136 ,  C12N15/1137 ,  C12N2310/14 ,  C12N2310/312 ,  C12N2320/51

    摘要： One aspect of the present invention relates to a ribonucleoside substituted with a phosphonamidite group at the 3′-position. In certain embodiments, the phosphonamidite is an alkyl phosphonamidite. Another aspect of the present invention relates to a double-stranded oligonucleotide comprising at least one non-phosphate linkage. Representative non-phosphate linkages include phosphonate, hydroxylamine, hydroxylhydrazinyl, amide, and carbamate linkages. In certain embodiments, the non-phosphate linkage is a phosphonate linkage. In certain embodiments, a non-phosphate linkage occurs in only one strand. In certain embodiments, a non-phosphate linkage occurs in both strands. In certain embodiments, a ligand is bound to one of the oligonucleotide strands comprising the double-stranded oligonucleotide. In certain embodiments, a ligand is bound to both of the oligonucleotide strands comprising the double-stranded oligonucleotide. In certain embodiments, the oligonucleotide strands comprise at least one modified sugar moiety. Another aspect of the present invention relates to a single-stranded oligonucleotide comprising at least one non-phosphate linkage. Representative non-phosphate linkages include phosphonate, hydroxylamine, hydroxylhydrazinyl, amide, and carbamate linkages. In certain embodiments, the non-phosphate linkage is a phosphonate linkage. In certain embodiments, a ligand is bound to the oligonucleotide strand. In certain embodiments, the oligonucleotide comprises at least one modified sugar moiety.

    摘要翻译： 本发明的一个方面涉及在3'-位被亚磷酰胺基取代的核糖核苷。 在某些实施方案中，亚磷酰胺是烷基亚磷酰胺。 本发明的另一方面涉及包含至少一种非磷酸键的双链寡核苷酸。 代表性的非磷酸酯键包括膦酸酯，羟胺，羟基肼基，酰胺和氨基甲酸酯键。 在某些实施方案中，非磷酸酯键是膦酸酯键。 在某些实施方案中，非磷酸酯键仅出现在一条链中。 在某些实施方案中，在两条链中都发生非磷酸连接。 在某些实施方案中，配体与包含双链寡核苷酸的寡核苷酸链之一结合。 在某些实施方案中，配体与包含双链寡核苷酸的两条寡核苷酸链结合。 在某些实施方案中，寡核苷酸链包含至少一个修饰的糖部分。 本发明的另一方面涉及包含至少一种非磷酸键的单链寡核苷酸。 代表性的非磷酸酯键包括膦酸酯，羟胺，羟基肼基，酰胺和氨基甲酸酯键。 在某些实施方案中，非磷酸酯键是膦酸酯键。 在某些实施方案中，配体与寡核苷酸链结合。 在某些实施方案中，寡核苷酸包含至少一个修饰的糖部分。

    Process for desilylation of oligonucleotides
    69.
    发明授权
    Process for desilylation of oligonucleotides 有权
    寡核苷酸脱甲硅烷基化方法

    公开(公告)号：US08431693B2

    公开(公告)日：2013-04-30

    申请号：US13036788

    申请日：2011-02-28

    申请人： Muthiah Manoharan ,  Michael F. Jung ,  Kallanthottathil G. Rajeev ,  Rajendra K. Pandey ,  Gang Wang

    发明人： Muthiah Manoharan ,  Michael F. Jung ,  Kallanthottathil G. Rajeev ,  Rajendra K. Pandey ,  Gang Wang

    IPC分类号： C07H21/00 ,  C07C17/07

    CPC分类号： C07H21/00 ,  C07H21/04 ,  Y02P20/55

    摘要： The present invention relates to processes and reagents for oligonucleotide synthesis and purification. One aspect of the present invention relates to compounds useful for activating phosphoramidites in oligonucleotide synthesis. Another aspect of the present invention relates to a method of preparing oligonucleotides via the phosphoramidite method using an activator of the invention. Another aspect of the present invention relates to sulfur-transfer agents. In a preferred embodiment, the sulfur-transfer agent is a 3-amino-1,2,4-dithiazolidine-5-one. Another aspect of the present invention relates to a method of preparing a phosphorothioate by treating a phosphite with a sulfur-transfer reagent of the invention. In a preferred embodiment, the sulfur-transfer agent is a 3-amino-1,2,4-dithiazolidine-5-one. Another aspect of the present invention relates to compounds that scavenge acrylonitrile produced during the deprotection of phosphate groups bearing ethylnitrile protecting groups. In a preferred embodiment, the acrylonitrile scavenger is a polymer-bound thiol. Another aspect of the present invention relates to agents used to oxidize a phosphite to a phosphate. In a preferred embodiment, the oxidizing agent is sodium chlorite, chloroamine, or pyridine-N-oxide. Another aspect of the present invention relates to methods of purifying an oligonucleotide by annealing a first single-stranded oligonucleotide and second single-stranded oligonucleotide to form a double-stranded oligonucleotide; and subjecting the double-stranded oligonucleotide to chromatographic purification. In a preferred embodiment, the chromatographic purification is high-performance liquid chromatography.

    摘要翻译： 本发明涉及寡核苷酸合成和纯化的方法和试剂。 本发明的一个方面涉及可用于在寡核苷酸合成中活化亚磷酰胺的化合物。 本发明的另一方面涉及使用本发明的活化剂通过亚磷酰胺方法制备寡核苷酸的方法。 本发明的另一方面涉及硫转移剂。 在优选的实施方案中，硫转移剂是3-氨基-1,2,4-二噻唑烷-5-酮。 本发明的另一方面涉及通过用本发明的硫转移试剂处理亚磷酸酯制备硫代磷酸酯的方法。 在优选的实施方案中，硫转移剂是3-氨基-1,2,4-二噻唑烷-5-酮。 本发明的另一方面涉及清除在带有乙腈基保护基团的磷酸酯基团去保护过程中产生的丙烯腈的化合物。 在优选的实施方案中，丙烯腈清除剂是聚合物结合的硫醇。 本发明的另一方面涉及用于将亚磷酸盐氧化成磷酸盐的试剂。 在优选的实施方案中，氧化剂是亚氯酸钠，氯胺或吡啶-N-氧化物。 本发明的另一方面涉及通过退火第一单链寡核苷酸和第二单链寡核苷酸来纯化寡核苷酸以形成双链寡核苷酸的方法; 并对双链寡核苷酸进行色谱纯化。 在优选的实施方案中，色谱纯化是高效液相色谱法。