L-rhamnulofuranose | 136658-35-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: L-rhamnulofuranose
• 英文别名: β-L-rhamnulofuranose；beta-L-Rhamnulofuranose；(2R,3R,4R,5S)-2-(hydroxymethyl)-5-methyloxolane-2,3,4-triol
• CAS: 136658-35-0
• 化学式: C₆H₁₂O₅
• 分子量: 164.158
• InChiKey: CJJCPDZKQKUXSS-UNTFVMJOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.8
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  90.2
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  L-rhamnulofuranose 1-phosphate monosodium salt 以 水 为溶剂， 反应 1.0h， 生成 L-rhamnulofuranose
  参考文献：
  名称：

  Use of dihydroxyacetone phosphate-dependent aldolases in the synthesis of deoxy aza sugars

  摘要：

  The use of fructose-1,6-diphosphate (FDP), fuculose-1-phosphate (Fuc-1-P) and rhamnulose-1-phosphate (Rham-1-P) aldolases in organic synthesis is described. Fuc-1-P, Rham-1-P, and their phosphate-free species have been prepared and characterized. Both Fuc-1-P and Rham-1-P aldolases accept 3-azido-2-hydroxypropanal as a substrate to form L-omega-azidoketose phosphates, which upon dephosphorylation and hydrogenolysis on Pd/C, gave 1-deoxyazasugars structurally related to D-galactose and L-mannose. Hydrogenolysis of the enzyme products azidoketose 1-phosphates, however, gave 1,6-dideoxyazasugars structurally related to 6-deoxygalactose and L-rhamnose. Explanations for the stereoselectivity in the hydrogenolysis reactions were provided. Similarly, FDP aldolase catalyzed the aldol condensation reaction with 2-azido-3-hydroxypropanal to afford a new synthesis of 2(R),5(S)-bis(hydroxymethyl)-3(R),4(R)-dihydroxypyrrolidine, a potent inhibitor of a number of glycosidases. A new empirical formula is developed to relate the inhibition constants and inhibitor binding for alpha- and beta-glucosidases.

  DOI：

  10.1021/jo00022a013

文献信息

• Amine-Catalyzed Direct Aldol Addition
  作者：Morris Markert、Michael Mulzer、Bernd Schetter、Rainer Mahrwald

  DOI：10.1021/ja071926a

  日期：2007.6.13

  An efficient organo-catalytic, highly syn-stereoselective method for aldol additions between enolizable aldehydes and hydroxyacetone as well as dihydroxyacetone is disclosed. Reactions proceed in the presence of tertiary amines at room temperature. The aldol adducts can be obtained in good to high yields and with high degrees of syn-diastereoselectivity. This new aldol reaction provides an operationally simple protocol for the stereocontrolled synthesis of carbohydrates
• Use of dihydroxyacetone phosphate-dependent aldolases in the synthesis of deoxy aza sugars
  作者：Kevin K. C. Liu、Tetsuya Kajimoto、Lihren Chen、Ziyang Zhong、Yoshitaka Ichikawa、Chi Huey Wong

  DOI：10.1021/jo00022a013

  日期：1991.10

  The use of fructose-1,6-diphosphate (FDP), fuculose-1-phosphate (Fuc-1-P) and rhamnulose-1-phosphate (Rham-1-P) aldolases in organic synthesis is described. Fuc-1-P, Rham-1-P, and their phosphate-free species have been prepared and characterized. Both Fuc-1-P and Rham-1-P aldolases accept 3-azido-2-hydroxypropanal as a substrate to form L-omega-azidoketose phosphates, which upon dephosphorylation and hydrogenolysis on Pd/C, gave 1-deoxyazasugars structurally related to D-galactose and L-mannose. Hydrogenolysis of the enzyme products azidoketose 1-phosphates, however, gave 1,6-dideoxyazasugars structurally related to 6-deoxygalactose and L-rhamnose. Explanations for the stereoselectivity in the hydrogenolysis reactions were provided. Similarly, FDP aldolase catalyzed the aldol condensation reaction with 2-azido-3-hydroxypropanal to afford a new synthesis of 2(R),5(S)-bis(hydroxymethyl)-3(R),4(R)-dihydroxypyrrolidine, a potent inhibitor of a number of glycosidases. A new empirical formula is developed to relate the inhibition constants and inhibitor binding for alpha- and beta-glucosidases.