| 1254708-46-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 生物素及其衍生物
• CAS: 1254708-46-7
• 化学式: C₂₆H₄₇N₇O₈S
• 分子量: 617.767
• InChiKey: QLFPYUOZSWPKFV-HWBMXIPRSA-N

反应信息

• 作为反应物：
  描述：

  、 在 三(苯并三唑-1-基甲基)胺 、 copper(II) sulfate 作用下， 以 二甲基亚砜 、 叔丁醇 为溶剂， 反应 16.0h， 以62%的产率得到
  参考文献：
  名称：

  Convenient Synthesis of a Propargylated Cyclic (3′-5′) Diguanylic Acid and Its “Click” Conjugation to a Biotinylated Azide

  摘要：

  The ribonucleoside building block, N(2)-isobutyryl-2'-O-propargyl-3'-O-levulinyl guanosine, was prepared from commercial N(2)-isobutyryl-5'-O-(4,4'-dimethoxytrityl)-2'-O-propargyl guanosine in a yield of 91%. The propargylated guanylyl(3'-5')guanosine phosphotriester was synthesized from the reaction of N(2)-isobutyryl-2'-O-propargyl-3'-O-levulinyl guanosine with N(2)-isobutyryl-5'-O-(4,4'-dimethoxytrityl)-2'-O-tert-butyldimethylsilyl-3'-O-[(2-cyanoethyl)-N, N-diisopropylaminophosphinyl] guanosine and isolated in a yield of 88% after P(III) oxidation, 3'-/5'-deprotection, and purification. The propargylated guanylyl(3'-5')guanosine phosphotriester was phosphitylated using 2-cyanoethyl tetraisopropylphosphordiamidite and 1H-tetrazole and was followed by an in situ intramolecular cyclization to give a propargylated c-di-GMP triester, which was isolated in a yield of 40% after P(III) oxidation and purification. Complete N-deacylation of the guanine bases and removal of the 2-cyanoethyl phosphate protecting groups from the propargylated c-di-GMP triester were performed by treatment with aqueous ammonia at ambient temperature. The final 2'-desilylation reaction was effected by exposure to triethylammonium trihydrofluoride affording the desired propargylated c-di-GMP diester, the purity of which exceeded 95%. Biotinylation of the propargylated c-di-GMP diester was easily accomplished through its cycloaddition reaction with a biotinylated azide derivative under click conditions to produce the biotinylated c-di-GMP conjugate of interest in an isolated yield of 62%.

  DOI：

  10.1021/bc1003857
• 作为产物：
  描述：

  azidoacetic anhydride 、 (+)-biotinyl-4,7,10,13,16-pentaoxa-1,19-diaminononadecane 在 吡啶 作用下， 以 乙腈 为溶剂， 反应 1.0h， 以61%的产率得到
  参考文献：
  名称：

  Convenient Synthesis of a Propargylated Cyclic (3′-5′) Diguanylic Acid and Its “Click” Conjugation to a Biotinylated Azide

  摘要：

  The ribonucleoside building block, N(2)-isobutyryl-2'-O-propargyl-3'-O-levulinyl guanosine, was prepared from commercial N(2)-isobutyryl-5'-O-(4,4'-dimethoxytrityl)-2'-O-propargyl guanosine in a yield of 91%. The propargylated guanylyl(3'-5')guanosine phosphotriester was synthesized from the reaction of N(2)-isobutyryl-2'-O-propargyl-3'-O-levulinyl guanosine with N(2)-isobutyryl-5'-O-(4,4'-dimethoxytrityl)-2'-O-tert-butyldimethylsilyl-3'-O-[(2-cyanoethyl)-N, N-diisopropylaminophosphinyl] guanosine and isolated in a yield of 88% after P(III) oxidation, 3'-/5'-deprotection, and purification. The propargylated guanylyl(3'-5')guanosine phosphotriester was phosphitylated using 2-cyanoethyl tetraisopropylphosphordiamidite and 1H-tetrazole and was followed by an in situ intramolecular cyclization to give a propargylated c-di-GMP triester, which was isolated in a yield of 40% after P(III) oxidation and purification. Complete N-deacylation of the guanine bases and removal of the 2-cyanoethyl phosphate protecting groups from the propargylated c-di-GMP triester were performed by treatment with aqueous ammonia at ambient temperature. The final 2'-desilylation reaction was effected by exposure to triethylammonium trihydrofluoride affording the desired propargylated c-di-GMP diester, the purity of which exceeded 95%. Biotinylation of the propargylated c-di-GMP diester was easily accomplished through its cycloaddition reaction with a biotinylated azide derivative under click conditions to produce the biotinylated c-di-GMP conjugate of interest in an isolated yield of 62%.

  DOI：

  10.1021/bc1003857