会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Extremely high purity oligonucleotides and methods of synthesizing them
using dimer blocks
    • 极高纯度的寡核苷酸和使用二聚体嵌段合成它们的方法
    • US6087491A
    • 2000-07-11
    • US827561
    • 1997-05-02
    • Jin-Yan TangNandkumar BongleJose GonzalezWarren E. Schwartz
    • Jin-Yan TangNandkumar BongleJose GonzalezWarren E. Schwartz
    • C07H21/00
    • C07H21/00
    • The present invention comprises an improved method of synthesizing oligonucleotides. The method comprises employing dinucleotides (or "dimer blocks") as the basic synthetic unit building block. The method results in extremely high purity oligonucleotides in which the N-1 content is very low, generally less than 1-2% of the full length, N, oligonucleotide. We have found that synthesis using dinucleotide phosphorothioates results in oligonucleotides having very little phosphodiester content. Furthermore, we have found that the amount of dimer required in each coupling step can be less than about 6 and is preferably about 2 equivalents. Synthesis of oligonucleotides according to the dimer block approach described herein can also be conducted without the capping step that has heretofore been deemed necessary after each coupling.
    • 本发明包括一种合成寡核苷酸的改进方法。 该方法包括使用二核苷酸(或“二聚体嵌段”)作为基本合成单元结构单元。 该方法产生非常高纯度的寡核苷酸,其中N-1含量非常低,通常小于全长N,寡核苷酸的1-2%。 我们已经发现,使用二核苷酸硫代磷酸酯的合成导致寡核苷酸具有非常少的磷酸二酯含量。 此外,我们已经发现,每个偶联步骤中所需的二聚体的量可以小于约6,优选约为2当量。 根据本文所述的二聚体嵌段方法的寡核苷酸的合成也可以在每次偶联之前已经被认为是必要的封端步骤的情况下进行。
    • 2. 发明授权
    • Extremely high purity oligonucleotides and methods of synthesizing them using dimer blocks
    • 极高纯度的寡核苷酸和使用二聚体嵌段合成它们的方法
    • US06310198B1
    • 2001-10-30
    • US09545273
    • 2000-04-07
    • Jin-Yan TangNandkumar BongleJose GonzalezWarren E. Schwartz
    • Jin-Yan TangNandkumar BongleJose GonzalezWarren E. Schwartz
    • C07H2100
    • C07H21/00
    • The present invention comprises an improved method of synthesizing oligonucleotides. The method comprises employing dinucleotides (or “dimer blocks”) as the basic synthetic unit building block. The method results in extremely high purity oligonucleotides in which the N−1 content is very low, generally less than 1-2% of the full length, N, oligonucleotide. We have found that synthesis using dinucleotide phosphorothioates results in oligonucleotides having very little phosphodiester content. Furthermore, we have found that the amount of dimer required in each coupling step can be less than about 6 and is preferably about 2 equivalents. Synthesis of oligonucleotides according to the dimer block approach described herein can also be conducted without the capping step that has heretofore been deemed necessary after each coupling.
    • 本发明包括一种合成寡核苷酸的改进方法。 该方法包括使用二核苷酸(或“二聚体嵌段”)作为基本合成单元结构单元。 该方法产生非常高纯度的寡核苷酸,其中N-1含量非常低,通常小于全长N,寡核苷酸的1-2%。 我们已经发现,使用二核苷酸硫代磷酸酯的合成导致寡核苷酸具有非常少的磷酸二酯含量。 此外,我们已经发现,每个偶联步骤中所需的二聚体的量可以小于约6,优选约为2当量。 根据本文所述的二聚体嵌段方法的寡核苷酸的合成也可以在没有在每次偶联之后被认为是必要的封端步骤的情况下进行。
    • 9. 发明授权
    • Sulfur transfer reagents for oligonucleotide synthesis
    • 用于寡核苷酸合成的硫转移试剂
    • US6096881A
    • 2000-08-01
    • US865666
    • 1997-05-30
    • Yongxin HanJimmy TangZhoada ZhangJin-Yan Tang
    • Yongxin HanJimmy TangZhoada ZhangJin-Yan Tang
    • C07D285/12C07D285/125C07D285/135C07D285/16C07H21/00C07D285/01C07H21/02
    • C07D285/16C07H21/00
    • In our research, two commercially available compounds, 3-amino-1,2,4-dithiazole-5-thione (1) and xanthane hydride (2), and their derivatives 3-6 are found to be potential sulfur-transfer reagents. The efficiency and optimization of these new sulfur-transfer reagents were investigated by solid-phase syntheses of dinudeotide and oligonucleotide phosphorothioates. The results show that both compounds 1 and 2 are highly efficient sulfurizing reagents, and better than 99% sulfur transfer efficiency can be achieved at each step. In contrast to Beaucage reagent, these novel sulfur-transfer reagents are very stable in various solvents, and are available in bulk quantities at low cost. Due to these advantages, compounds 1 and 2 can be considered alternatives to Beaucage reagent, especially in large-scale preparation of oligonucleotide phosphorothioates. Furthermore, compounds 1 and 2 were modified to enhance their solubility in acetonitrile. Three types of structure, as described as Formulae I, II, and III, are considered as potential efficient sulfur-transfer reagents based on our results.
    • 在我们的研究中,发现两种市售化合物,3-氨基-1,2,4-二噻唑-5-硫酮(1)和氢化蒽(2)及其衍生物3-6是潜在的硫转移试剂。 通过二肽和寡核苷酸硫代磷酸酯的固相合成研究了这些新型硫转移试剂的效率和优化。 结果表明,化合物1和化合物2均为高效硫化试剂,每步可达99%以上的硫转移效率。 与Beaucage试剂相反,这些新型硫转移试剂在各种溶剂中非常稳定,并且可以以低成本批量获得。 由于这些优点,化合物1和2可以被认为是拜耳试剂的替代物,特别是在大规模制备寡核苷酸硫代磷酸酯时。 此外,化合物1和2被修饰以增强其在乙腈中的溶解度。 根据我们的结果,三种类型的结构,如式I,II和III所述被认为是潜在的有效的硫转移试剂。