2,3,4,5-tetra-O-acetyl-D-ribose diethyl dithioacetal | 10021-52-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2,3,4,5-tetra-O-acetyl-D-ribose diethyl dithioacetal
• 英文别名: diethyldithioacetal-D-ribose peracetate；tetra-O-acetyl-aldehydo-D-ribose-diethyldithioacetal；Tetra-O-acetyl-aldehydo-D-ribose-diaethyldithioacetal；[(2R,3R,4R)-2,3,4-triacetyloxy-5,5-bis(ethylsulfanyl)pentyl] acetate
• CAS: 10021-52-0
• 化学式: C₁₇H₂₈O₈S₂
• 分子量: 424.537
• InChiKey: OGSWVSGRSHUBOP-BZUAXINKSA-N

物化性质

• 熔点：
  49.5-50 °C
• 沸点：
  451.1±45.0 °C(Predicted)
• 密度：
  1.204±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  27
• 可旋转键数：
  16
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.76
• 拓扑面积：
  156
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  2,3,4,5-tetra-O-acetyl-D-ribose diethyl dithioacetal 在 calcium sulfate 、 氰化汞 、 potassium carbonate 、 三乙胺 、 mercury(II) oxide 作用下， 以 甲醇 、 硝基甲烷 、 乙醇 为溶剂， 反应 58.0h， 生成 (2R,3R,4R)-5-Ethylsulfanyl-5-[6-((R)-1-methyl-2-phenyl-ethylamino)-purin-9-yl]-pentane-1,2,3,4-tetraol
  参考文献：
  名称：

  Ribose-modified adenosine analogs as adenosine receptor agonists

  摘要：

  Analogues of the potent adenosine receptor agonist (R)-N-(1-methyl-2-phenylethyl)adenosine (R-PIA), modified at N9, were prepared and evaluated for adenosine A1 and A2 receptor binding and in vivo central nervous system and cardiovascular effects. The modifications at N9 include deoxy sugars, 5'-substituted-5'-deoxyriboses, non-ribose sugars, sugar ring homologues, and acyclic sugar analogues. Most of the derivatives have poor affinity for adenosine receptors. Only minor modifications at C5' and C3' maintain potent binding. In general, those derivatives exhibiting in vivo behavioral or cardiovascular effects also have the highest affinity for adenosine receptors.

  DOI：

  10.1021/jm00153a008
• 作为产物：
  描述：

  D-Ribose-diethyl-dithioacetal 、 乙酸酐 以64%的产率得到
  参考文献：
  名称：

  ROBERTS, JEANETTE C.;NAGASAWA, HERBERT T.;ZERA, RICHARD T.;FRICKE, ROBERT+, J. MED. CHEM., 30,(1987) N 10, 1891-1896

  摘要：

  DOI：

文献信息

• A Useful and Environmentally Benign Synthetic Protocol for Dethiolization by Employing Vanadium Pentoxide Catalyzed Oxidation of Ammonium Bromide by Hydrogen Peroxide
  作者：Ejabul Mondal、Gopal Bose、Priti Rani Sahu、Abu T. Khan

  DOI：10.1246/cl.2001.1158

  日期：2001.11

  presence of olefin and aromatic ring as well as other protecting groups to carbonyl compounds by employing V2O5 catalyzed oxidation of ammonium bromide by H2O2 in CH2Cl2–H2O solvent system; mild conditions, high selectivity, good yield, and no side products such as bromination or oxidation are some of the major advantages.

  在 CH2Cl2–H2O 溶剂体系中，V2O5 催化 2 氧化溴化铵，在烯烃和芳环以及其他保护基团的存在下，多种硫缩醛和硫缩酮可以化学选择性地裂解为羰基化合物；温和的条件、高选择性、良好的收率以及无溴化或氧化等副产物是一些主要优点。
• Bromodimethylsulfonium bromide (BDMS) mediated dithioacetalization of carbohydrates under solvent-free conditions
  作者：Abu T. Khan、Md. Musawwer Khan

  DOI：10.1016/j.carres.2010.07.044

  日期：2010.10

  A variety of diethyl dithioacetals of sugars can be prepared in very good yields by the reaction of various monosaccharides with ethanethiol in the presence of 3 mol% bromodimethylsulfonium bromide (BDMS) at 0-5 degrees C. Similarly, dipropyl dithioacetal derivatives can also be obtained in good yields using propanethiol under identical reaction conditions. These dithioacetal derivatives were characterized

  通过使各种单糖与乙硫醇在3 mol％溴化二甲基ulf溴化物（BDMS）的存在下，在0-5℃下反应，可以以很高的收率制得各种糖类的二乙基二硫缩醛。类似地，也可以得到二丙基二硫缩醛衍生物在相同的反应条件下，使用丙硫醇可得到良好的收率。这些二硫缩醛衍生物的特征在于，使用硅胶负载的高氯酸进行过O-乙酰化。本方案的显着特征是良好至优异的收率，温和，清洁和无溶剂的反应条件。该方法非常适合大规模制备各种糖的二硫缩醛衍生物。
• Acylic Sugar Derivatives for GC/MS Analysis of ¹³C-Enrichment during Carbohydrate Metabolism
  作者：Neil P. J. Price

  DOI：10.1021/ac049198m

  日期：2004.11.1

  localize and quantify the fractional incorporation of 13C isotope into each carbon atom of precursor-derived metabolites. In this paper, several carbohydrate derivatization procedures (peracetylation, deuterioalditol acetates, and aldononitrile acetates) are evaluated for the positional isotopic information obtained by gas chromatography/electron impact mass spectrometry (GC/EI-MS). These derivatives

  稳定同位素示踪剂与气相色谱/质谱法（GC / MS）结合进行代谢谱分析是一种用于测定代谢途径中底物再分布的成熟技术。该分析依赖于定位和定量将13 C同位素部分掺入前体衍生代谢物的每个碳原子中的能力。在本文中，针对通过气相色谱/电子轰击质谱（GC / EI-MS）获得的位置同位素信息，评估了几种碳水化合物的衍生化方法（过乙酰化，乙酸氘代醛糖醇和乙酸醛醇）。比较了这些衍生物，以定量评估13C标记的醛糖和酮糖的同位素异构体中13C的分布，以及15种己糖，戊糖，和生物来源的氨基糖已被评估。此外，已开发出一种用于GC / MS的新型碳水化合物衍生物（二烷基二硫代乙缩醛乙酸酯），可保留原始单糖的异头碳上的电荷。这些衍生物的电子碰撞电离会产生良好解析的碱基峰，该峰由C1-C2键断裂产生，电荷保留在C1硫醇基上。二烷基二硫缩醛乙酸酯特别适合于测量同位素富集到醛糖糖特征异头碳中，并将有助于对碳水化合物途径中
• A Highly Efficient Procedure for Regeneration of Carbonyl Groups from their Corresponding Oxathioacetals and Dithioacetals Using Sodium Nitrite and Acetyl Chloride in Dichloromethane
  作者：Abu T. Khan、Ejabul Mondal、Priti R. Sahu

  DOI：10.1055/s-2003-37115

  日期：——

  A wide variety of oxathioacetals 1 as well as dithioacetals 2 can be chemoselectively deprotected to the corresponding carbonyl compounds 3 in good yields by employing NaNO2-AcCl and H2O in CH2Cl2 at 0 °C to room temperature. Some of the major advantages of this procedure are: mild conditions, easy to handle, highly chemoselective and efficient, high yields and inexpensive reagents. In addition, no acetylation occurs at the hydroxyl group nor chlorination takes place at the double bond.

  多种氧噻唑醚 1 以及双噻唑醚 2 可以在温和的条件下，通过在 0 °C 到室温的 CH2Cl2 中使用 NaNO2-AcCl 和 H2O，化学选择性地去保护为相应的羰基化合物 3，产率良好。该程序的一些主要优点包括：条件温和、操作简便、高度化学选择性和高效、产率高以及试剂廉价。此外，羟基不发生醋酸化，双键也不发生氯化。
• VO(acac)2/H2O2/NaI: a mild and efficient combination for the cleavage of dithioacetal derivatives of sugars
  作者：Abu T. Khan、Shahzad Ali、R. Sidick Basha、Md. Musawwer Khan、Mohan Lal

  DOI：10.1016/j.carres.2011.09.006

  日期：2011.11

  A wide variety of dithioacetal derivatives of sugars can be cleaved easily into the corresponding open-chain aldehydo sugars using an efficient combination of VO(acac)(2)/H2O2/NaI at 0-5 degrees C. Some of the salient features of this protocol are mild reaction conditions, good yields, short reaction times, easy work-up procedures, and non-involvement of toxic chemicals. (C) 2011 Elsevier Ltd. All rights reserved.