(R)-4-[1-Hydroxy-3-((2S,3R,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-prop-2-ynyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester | 443916-35-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (R)-4-[1-Hydroxy-3-((2S,3R,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-prop-2-ynyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester
• CAS: 443916-35-6
• 化学式: C₄₇H₅₅NO₉
• 分子量: 777.955
• InChiKey: DXZIRGCZGPUFKI-SJOAYDFKSA-N

物化性质

• 沸点：
  833.0±65.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.46
• 重原子数：
  57.0
• 可旋转键数：
  14.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  105.15
• 氢给体数：
  1.0
• 氢受体数：
  9.0

反应信息

• 作为反应物：
  描述：

  (R)-4-[1-Hydroxy-3-((2S,3R,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-prop-2-ynyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 在 4-二甲氨基吡啶 、 sodium acetate 、 对甲苯磺酰肼 作用下， 以 四氢呋喃 、 乙二醇二甲醚 为溶剂， 反应 10.5h， 生成
  参考文献：
  名称：

  Synthesis of α- and β-Glycosyl Asparagine Ethylene Isosteres (C-Glycosyl Asparagines) via Sugar Acetylenes and Garner Aldehyde Coupling

  摘要：

  A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of alpha- or beta-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-alpha-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of alpha- and beta-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.

  DOI：

  10.1021/jo020054m
• 作为产物：
  描述：

  (R)-(+)-3-Boc-2,2-二甲基恶唑啉-4-甲醛 、 (2,3,4,6-tetra-O-benzyl-β-D-mannopyranosyl)ethyne 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.5h， 以55%的产率得到(R)-4-[1-Hydroxy-3-((2S,3R,4R,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-prop-2-ynyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester
  参考文献：
  名称：

  Synthesis of α- and β-Glycosyl Asparagine Ethylene Isosteres (C-Glycosyl Asparagines) via Sugar Acetylenes and Garner Aldehyde Coupling

  摘要：

  A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of alpha- or beta-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-alpha-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of alpha- and beta-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.

  DOI：

  10.1021/jo020054m