Carbohydrate conjugates as delivery agents for oligonucleotides
    47.
    发明授权
    Carbohydrate conjugates as delivery agents for oligonucleotides 有权
    碳水化合物缀合物作为寡核苷酸的递送剂

    公开(公告)号:US08106022B2

    公开(公告)日:2012-01-31

    申请号:US12328528

    申请日:2008-12-04

    IPC分类号: A01N43/04 A61K31/70

    摘要: The present invention provides iRNA agents comprising at least one subunit of the formula (I): wherein: A and B are each independently for each occurrence O, N(RN) or S; X and Y are each independently for each occurrence H, OH, a hydroxyl protecting group, a phosphate group, a phosphodiester group, an activated phosphate group, an activated phosphite group, a phosphoramidite, a solid support, —P(Z′)(Z″)O-nucleoside, —P(Z′)(Z″)O-oligonucleotide, a lipid, a PEG, a steroid, a lipophile, a polymer, —P(Z′)(Z″)O-Linker-OP(Z′″)(Z″″)O-oligonucleotide, a nucleotide, an oligonucleotide, —P(Z′)(Z″)-formula (I), —P(Z′)(Z″)— or -Linker-R; R is LG, -Linker-LG, or has the structure shown below: LG is independently for each occurrence a carbohydrate, e.g., monosaccharide, disaccharide, trisaccharide, tetrasaccharide, oligosaccharide, polysaccharide; RN is independently for each occurrence H, methyl, ethyl, propyl, isopropyl, butyl, or benzyl; and Z′, Z″, Z′″ and Z″″ are each independently for each occurrence O or S.

    摘要翻译: 本发明提供包含至少一个式(I)亚基的iRNA试剂:其中:A和B各自独立地为O,N(RN)或S; X和Y各自独立地为H,OH,羟基保护基,磷酸基,磷酸二酯基,活化磷酸酯基,活化亚磷酸酯基,亚磷酰胺,固体载体,-P(Z')( Z“)O-核苷,-P(Z')(Z”)O-寡核苷酸,脂质,PEG,类固醇,亲脂性,聚合物,-P(Z')(Z“)O-Linker- OP(Z'“)(Z”“) - 寡核苷酸,寡核苷酸,-P(Z')(Z”) - 式(I),-P(Z')(Z“) - 链接器R R是LG,-Linker-LG,或具有如下结构:每次出现LG独立为碳水化合物,例如单糖,二糖,三糖,四糖,寡糖,多糖; 乙烯基,丙基,异丙基,丁基或苄基各自独立地为N, 和Z',Z“,Z”“和Z”“各自独立地为O或S.

    Oligonucleotides comprising a non-phosphate backbone linkage
    50.
    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:US07723512B2

    公开(公告)日:2010-05-25

    申请号:US12496250

    申请日:2009-07-01

    IPC分类号: C07H19/00 C07H19/22

    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。