methyl 4-deoxy-4-fluoro-α-d-galactopyranoside | 32934-07-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 4-deoxy-4-fluoro-α-d-galactopyranoside
• 英文别名: Methyl 4-deoxy-4-fluoro-alpha-d-galacto-pyranoside；(2S,3R,4R,5R,6R)-5-fluoro-6-(hydroxymethyl)-2-methoxyoxane-3,4-diol
• CAS: 32934-07-9
• 化学式: C₇H₁₃FO₅
• 分子量: 196.176
• InChiKey: PGYKOSXDWWGTOB-PZRMXXKTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.6
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  79.2
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl 4-deoxy-4-fluoro-α-d-galactopyranoside 在 Dowex 50W-X₈ (H(+)) 作用下， 以 水 为溶剂， 反应 25.0h， 生成 4-Deoxy-4-fluoro-β-D-galactopyranoside 、 4-Deoxy-4-fluoro-α-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of UDP-4-deoxy-4-fluoroglucose and UDP-4-deoxy-4-fluorogalactose and their Interactions with Enzymes of Nucleotide Sugar Metabolism

  摘要：

  Fluorinated carbohydrates can be used as probes of enzymatic active sites. We report the synthesis of 4-deoxy-4-fluoro-alpha-D-galactose-1-phosphate and the substrate analogues of UDP-galactose, UDP-4-deoxy-4-fluoro-alpha-D-galactose (UDP-FGal), and of UDP-glucose, UDP-4-deoxy-4-fluoro-alpha-D-glucose (UDP-FGlc), which may be useful in analyzing the binding properties of enzymes that utilize nucleotide sugars as substrates. As a first step in this study, we determine the kinetic and inhibition parameters for UDP-FGal and UDP-FGlc interacting with UDP-glucose dehydrogenase and UDP-galactose 4-epimerase. UDP-FGlc is a substrate for bovine liver UDP-glucose dehydrogenase: K-m = 30.2 +/- 4.5 mu M slightly higher than the value 9.6 +/- 0.7 mu M for UDP-glucose, and V-mUDP-FGlc = 046V (mUDP-Glc). UDP-FGal is not a substrate for UDP-glucose dehydrogenase but is a competitive inhibitor with respect to UDP-glucose (K-i = 19.9 +/- 6.6 mu M). These analogs also bind to UDP-galactose 4-epimerase from E. coli with dissociation constants K-d of 1.4 and 1.1 mM for UDP-FGlc and UDP-FGal, respectively.

  DOI：

  10.1021/jo00102a024
• 作为产物：
  描述：

  甲基-6-O-三苯基甲基-alpha-D-吡喃葡萄糖苷 在 溶剂黄146 、 4,4'-二氨基二苯乙烯-2,2'-二磺酸 作用下， 以 二氯甲烷 为溶剂， 生成 methyl 4-deoxy-4-fluoro-α-d-galactopyranoside
  参考文献：
  名称：

  Synthesis of UDP-4-deoxy-4-fluoroglucose and UDP-4-deoxy-4-fluorogalactose and their Interactions with Enzymes of Nucleotide Sugar Metabolism

  摘要：

  Fluorinated carbohydrates can be used as probes of enzymatic active sites. We report the synthesis of 4-deoxy-4-fluoro-alpha-D-galactose-1-phosphate and the substrate analogues of UDP-galactose, UDP-4-deoxy-4-fluoro-alpha-D-galactose (UDP-FGal), and of UDP-glucose, UDP-4-deoxy-4-fluoro-alpha-D-glucose (UDP-FGlc), which may be useful in analyzing the binding properties of enzymes that utilize nucleotide sugars as substrates. As a first step in this study, we determine the kinetic and inhibition parameters for UDP-FGal and UDP-FGlc interacting with UDP-glucose dehydrogenase and UDP-galactose 4-epimerase. UDP-FGlc is a substrate for bovine liver UDP-glucose dehydrogenase: K-m = 30.2 +/- 4.5 mu M slightly higher than the value 9.6 +/- 0.7 mu M for UDP-glucose, and V-mUDP-FGlc = 046V (mUDP-Glc). UDP-FGal is not a substrate for UDP-glucose dehydrogenase but is a competitive inhibitor with respect to UDP-glucose (K-i = 19.9 +/- 6.6 mu M). These analogs also bind to UDP-galactose 4-epimerase from E. coli with dissociation constants K-d of 1.4 and 1.1 mM for UDP-FGlc and UDP-FGal, respectively.

  DOI：

  10.1021/jo00102a024

文献信息

• Synthesis of specifically monofluorinated ligands related to the O-polysaccharide of Shigella dysenteriae type 1
  作者：Laurence A. Mulard、Paul Kováč、Cornelis P.J. Glaudemans

  DOI：10.1016/0008-6215(94)84194-2

  日期：1994.6

  The synthesis is reported of galactopyranose nucleophiles monofluorinated at positions 3, 4, or 6 and protected by 4,6-O-benzylidene, 3,6-di-O-benzyl, or 3,4-O-isopropylidene groups, respectively. The condensation of these nucleophiles with 2,3,4-tri-O-benzoyl-alpha-L-rhamnosyl bromide gave, after deprotection, the disaccharide analogues of methyl O-alpha-L-rhamnopyranosyl-(1-->2)-alpha-D-galactopyranoside

  据报道合成了在3、4或6位单氟化并分别由4，6-O-亚苄基，3，6-二-O-苄基或3，4-O-异亚丙基保护的半乳糖吡喃糖亲核体。这些亲核试剂与2,3,4-三-O-苯甲酰基-α-L-鼠李糖基溴缩合后，脱保护后得到甲基O-α-L-鼠李糖基-（1-> 2）-的二糖类似物。 α-D-半乳糖吡喃糖苷，在半乳糖苷残基的3、4或6位单氟化。
• Specificity of α- and β-d-galactosidase towards analogs of d-galactopyranosides modified at C-4 or C-5
  作者：Jeong E. Nam Shin、Asafu Maradufu、Jean Marion、Arthur S. Perlin

  DOI：10.1016/s0008-6215(00)85562-7

  日期：1980.9