(1R,3R,4R,7S)-3-(4-N-benzoyl-5-methylcytosin-1-yl)-[2-cyanoethoxy(diisopropylamino)phosphinoxy]-1-[4,4'-dimethoxytrityloxymethyl]-2,5-dioxabicyclo[2.2.1]heptane | 206055-82-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: (1R,3R,4R,7S)-3-(4-N-benzoyl-5-methylcytosin-1-yl)-[2-cyanoethoxy(diisopropylamino)phosphinoxy]-1-[4,4'-dimethoxytrityloxymethyl]-2,5-dioxabicyclo[2.2.1]heptane
• 英文别名: (1R,3R,4R,7S)-3-(4-N-Benzoyl-5-methylcytosin-1-yl)-7-(2-cyanoethoxy-(diisopropylamino)phosphinoxy)-1-(4,4'-dimethoxytrityloxymethyl)-2,5-dioxabicyclo-[2.2.1]heptane；(1R,3R,4R,7S)-3-(4-Benzamido-5-methyl-2-oxopyrimidin-1(2H)-yl)-1-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-2,5-dioxabicyclo[2.2.1]heptan-7-yl (2-cyanoethyl) diisopropylphosphoramidite；N-[1-[(1R,3R,4R,7S)-1-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-7-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-2,5-dioxabicyclo[2.2.1]heptan-3-yl]-5-methyl-2-oxopyrimidin-4-yl]benzamide
• CAS: 206055-82-5
• 化学式: C₄₈H₅₄N₅O₉P
• 分子量: 875.959
• InChiKey: XHILZPWJJJDDDY-HXAWEXODSA-N

物化性质

• 溶解度：
  acetonitrile: 0.2M, clear, colorless

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  63
• 可旋转键数：
  19
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  153
• 氢给体数：
  1
• 氢受体数：
  11

安全信息

• 危险性防范说明：
  P501,P270,P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313,P301+P312+P330
• 危险性描述：
  H302,H315,H319

反应信息

• 作为产物：
  描述：

  1-[(1R,4R,6R,7S)-4-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-7-hydroxy-2,5-dioxabicyclo[2.2.1]heptan-6-yl]-5-methylpyrimidine-2,4-dione 在 吡啶 、 ammonium hydroxide 、 4,5-二氰基咪唑 、 N,N-二异丙基乙胺 、 三氯氧磷 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 3.0h， 生成 (1R,3R,4R,7S)-3-(4-N-benzoyl-5-methylcytosin-1-yl)-[2-cyanoethoxy(diisopropylamino)phosphinoxy]-1-[4,4'-dimethoxytrityloxymethyl]-2,5-dioxabicyclo[2.2.1]heptane
  参考文献：
  名称：

  Conformationally restricted triplex-forming oligonucleotides (TFOs). Binding properties of α-l-LNA and introduction of the N7-glycosylated LNA-guanosine

  摘要：

  The method for scaled-up production of alpha-L-LNA phosphoramidite building blocks containing thymine and 5-methylcytosine nucleobases is described. Binding properties of pyrimidine TFOs modified with alpha-L-LNA are reported. In contrast to LNA TFOs, the fully modified a-L-LNA forms a stable triplex with a model DNA duplex. Pyrimidine DNA/LNA/alpha-L-LNA chimeras also efficiently hybridize with a model DNA duplex in the parallel mode. LNA nucleoside containing unnatural N-7-glycosylated guanine (LNA-(7) G) was synthesized by a convergent method and incorporated into LNA oligonucleotides. The triplex-forming alternating DNA/LNA oligonucleotides containing a single LNA-(7) G modification instead of internal LNA-mC demonstrate improved pH-dependent properties. The single LNA-(7) G modification can also discriminatively reduce competitive binding of TFOs to natural nucleic acids in the antiparallel duplex mode. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.04.016

文献信息

• Preparation of LNA Phosphoramidites
  作者：Daniel Sejer Pedersen、Christoph Rosenbohm、Troels Koch

  DOI：10.1055/s-2002-25756

  日期：——

  A highly efficient method for the preparation of LNA (Locked Nucleic Acid) phosphoramidite monomers with 2-cyanoethyl-N,N,N′,N′-tetraisopropylphosphorodiamidite and 4,5-dicyanoimidazole has been devised. The quality of the phosphoramidites prepared in this manner is equal to HPLC purified phosphoramidites and can easily be used for oligonucleotide synthesis without further purification. In addition the possibility of using 4,5-dicyanoimidazole in catalytic amounts has been investigated and showed optimum results when 0.7 equivalent was used, and that reducing the amount further leads to undesired phosphitylation of the nucleobase.Furthermore it is demonstrated that LNA phosphoramidite monomers are exceedingly stable in acetonitrile solution thereby prolonging the effective lifetime of the reagent significantly.

  已设计出一种高效制备LNA（锁核酸）磷酰胺单体的方法，该方法使用2-氰乙基-N,N,N',N'-四异丙基磷酸二酰胺和4,5-二氰基咪唑。以此方式制备的磷酰胺质量与HPLC纯化的磷酰胺相当，无需进一步纯化即可轻松用于寡核苷酸合成。此外，研究了使用催化量的4,5-二氰基咪唑的可能性，并发现当使用0.7当量时获得最佳结果，而进一步减少用量会导致核苷碱基的不希望的磷酸化。此外，实验证明LNA磷酰胺单体在乙腈溶液中极为稳定，从而显著延长了试剂的有效使用寿命。
• [EN] NOVEL PROCESS FOR MAKING ALLOFURANOSE FROM GLUCOFURANOSE<br/>[FR] NOUVEAU PROCÉDÉ DE FABRICATION D'ALLOFURANOSE À PARTIR DE GLUCOFURANOSE
  申请人：ROCHE INNOVATION CT COPENHAGEN AS

  公开号：WO2019224172A1

  公开（公告）日：2019-11-28

  The present invention relates to the manufacture of allofuranose from glucofuranose as defined in the description and in the claim. Allofuranos is an intermediate in the manufacture of oligonucleotides which can be used as a medicament.

  本发明涉及从描述和权利要求中定义的葡糖呋喃糖中制备阿洛呋喃糖。阿洛呋喃糖是合成寡核苷酸时的中间体，可用作药物。
• Method for preparation of LNA phosphoramidites
  申请人：——

  公开号：US20030032794A1

  公开（公告）日：2003-02-13

  The present invention relates to large scale preparation of LNA phosphoramidites using a 2-cyanoethyl-N,N,N′,N′-tetra-substituted phosphoramidite and a nucleophilic activator, e.g. 2-cyanoethyl-N,N,N′,N′-tetraisopropylphosphoramidite and 4,5-dicyanoimidazole. The method is faster and more cost efficient that previously known methods.

  本发明涉及使用2-氰基乙基-N，N，N'，N'-四取代膦酰胺和亲核活化剂（例如2-氰基乙基-N，N，N'，N'-四异丙基膦酰胺和4,5-二氰基咪唑）进行LNA膦酰胺的大规模制备。该方法比以往已知的方法更快速且更具成本效益。
• Oligonucleotide analogues
  申请人：Wengel Jesper

  公开号：US20050287566A1

  公开（公告）日：2005-12-29

  The present invention relates to novel bicyclic and tricyclic nucleoside and nucleotide analogues as well as to oligonucleotides comprising such elements. The nucleotide analogues, LNAs (Locked Nucleoside Analogues), are able to provide valuable improvements to oligonucleotides with respect to affinity and specificity towards complementary RNA and DNA oligomers. The novel type of LNA modified oligonucleotides, as well as the LNAs as such, are useful in a wide range of diagnostic applications as well as therapeutic applications. Among these can be mentioned antisense applications, PCR applications, strand displacement oligomers, as substrates for nucleic acid polymerases, as nucleotide based drugs, etc. The present invention also relates to such applications.

  本发明涉及新型的双环和三环核苷酸和核苷酸类似物，以及包含这些元素的寡核苷酸。这些核苷酸类似物，即锁定核苷酸类似物（LNAs），能够为寡核苷酸提供与互补RNA和DNA寡聚物的亲和力和特异性方面的有价值的改进。这种新型的LNA修饰的寡核苷酸以及LNA本身在广泛的诊断应用和治疗应用中非常有用。其中包括反义应用、PCR应用、链置换寡聚物、作为核酸聚合酶的底物、作为基于核苷酸的药物等。本发明还涉及这些应用。
• OLIGONUCLEOTIDE ANALOGUES
  申请人：Wengel Jesper

  公开号：US20100279895A1

  公开（公告）日：2010-11-04

  The present invention relates to novel bicyclic and tricyclic nucleoside and nucleotide analogues as well as to oligonucleotides comprising such elements. The nucleotide analogues, LNAs (Locked Nucleoside Analogues), are able to provide valuable improvements to oligonucleotides with respect to affinity and specificity towards complementary RNA and DNA oligomers. The novel type of LNA modified oligonucleotides, as well as the LNAs as such, are useful in a wide range of diagnostic applications as well as therapeutic applications. Among these can be mentioned antisense applications, PCR applications, strand displacement oligomers, as substrates for nucleic acid polymerases, as nucleotide based drugs, etc. The present invention also relates to such applications.

  本发明涉及新型的双环和三环核苷酸和核苷酸类似物，以及包含这些元素的寡核苷酸。这些核苷酸类似物，即LNAs（锁定核苷酸类似物），能够为寡核苷酸提供与互补RNA和DNA寡聚物相比亲和力和特异性的有价值的改进。这种新型的LNA修饰的寡核苷酸以及LNAs本身在广泛的诊断应用和治疗应用中都有用途。其中可以提到反义应用、PCR应用、链位移寡聚物、作为核酸聚合酶底物、作为核苷酸基药物等。本发明还涉及这些应用。