methyl 2,3,6-tri-O-benzoyl-α-D-mannopyranoside | 3396-68-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2,3,6-tri-O-benzoyl-α-D-mannopyranoside
• 英文别名: methyl-2,3,6-tri-O-benzoyl-α-D-mannopyranoside；methyl 2,3,6-O-benzoyl-α-D-mannopyranoside；Methyl-2,3,6-tri-O-benzoyl-α-D-manno-pyranosid；Methyl 2,3,6-tri-O-benzoyl-a-D-mannopyranoside；[(2R,3R,4S,5S,6S)-4,5-dibenzoyloxy-3-hydroxy-6-methoxyoxan-2-yl]methyl benzoate
• CAS: 3396-68-7
• 化学式: C₂₈H₂₆O₉
• 分子量: 506.509
• InChiKey: WXFFEILSURAFKL-AFRDOISBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.03
• 重原子数：
  37.0
• 可旋转键数：
  8.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  117.59
• 氢给体数：
  1.0
• 氢受体数：
  9.0

反应信息

• 作为反应物：
  描述：

  methyl 2,3,6-tri-O-benzoyl-α-D-mannopyranoside 在 rhodium(III) chloride 甲醇 、 过氧化双月桂酰 、 sodium methylate 、 sodium hydride 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙醇 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 7.5h， 生成 methyl 2,3,6-tri-O-benzyl-4-deoxy-4-C-[(E)-prop-1-en-1-yl]-α-D-mannopyranoside
  参考文献：
  名称：

  Synthesis of the C-Linked Disaccharide α-d-Man-(1→4)-d-Man Employing a SmI₂-Mediated C-Glycosylation Step:  En Route to Cyclic C-Oligosaccharides

  摘要：

  Investigations are reported on the assembly of the C-linked disaccharide alpha-D-Man-(1-->4)-D-Man, representing the first steps in our projected synthesis of a cyclic C-oligomer containing repeating units of this C-dimer. The key step in this synthesis uses a SmI2-mediated coupling of 2,3,4,6-tetra-O-benzyl-alpha-D-mannopyranosyl 2'-pyridyl sulfone with a C4-formyl branched mannopyranoside unit, affording the C-disaccharide derivative with complete stereocontrol at the two new stereogenic centers. Subsequently, a modified tin hydride based deoxygenation produced the target carbohydrate analogue. The synthesis of the C4-formyl monosaccharide makes use of a stereoselective radical-based allylation followed by double bond migration and ozonolysis.

  DOI：

  10.1021/jo020585a
• 作为产物：
  描述：

  methyl 2,3-di-O-benzoyl-4,6-O-benzylidene-α-D-mannopyranoside 生成 methyl 2,3,6-tri-O-benzoyl-α-D-mannopyranoside
  参考文献：
  名称：

  SATO, KEN-ICHI;JGARASHI, TETSUTARO;YANAGISAWA, YUKIO;KAWAUCHI, NOBUYA;HAS+, CHEM. LETT.,(1988) N 10, C. 1699-1702

  摘要：

  DOI：

文献信息

• Regioselective O-deacylation of fully acylated glycosides and 1,2-O-isopropylidenealdofuranose derivatives with hydrazine hydrate
  作者：Hoshiharu Ishido、Nobuo Sakairi、Masao Sekiya、Nobuo Nakazaki

  DOI：10.1016/s0008-6215(00)80525-x

  日期：1981.11

  partial O -deacylation of fully acylated methyl glycosides and some other glycosyl compounds (23 compounds) was found to be induced, to give, in good yields, products bearing one free hydroxyl group; the results obtained indicated that, among the primary and secondary O -acyl groups, the 2- O -acyl groups were, in general, the most labile toward the nucleophile (hydrazine). Hydrazinolysis of 1,2- O -

  摘要在1：4乙酸-吡啶中进行肼解后，在吡啶中，可诱导完全酰化的甲基糖苷和某些其他糖基化合物（23种化合物）的部分O-脱酰作用，从而以较高的收率得到含1种化合物的产物。游离羟基 所得结果表明，在伯和仲O-酰基中，2-O-酰基通常对亲核试剂（肼）最不稳定。另一方面，对1，2-O-异亚丙基戊二醛呋喃糖酰化物（3种化合物）进行水合肼解，以高收率得到相应的在其伯羟基上具有保护基的单酰基衍生物。讨论了可能与肼解的区域选择性有关的因素。
• Synthesis of mono- and dimannoside phosphoramidite derivatives for solid-phase conjugation to oligonucleotides
  作者：Saghir Akhtar、Anne Routledge、Ramila Patel、John M. Gardiner

  DOI：10.1016/0040-4039(95)01512-g

  日期：1995.10

  Mannose and dimannose derivatives have been prepared with an anomerically-linked hydrophobic spacer, and converted to phosphoramidite derivatives suitable for conjugation to oligoribodeoxynucleotides on a DNA/RNA synthesizer. Synthesis of a monomannoside-linked 15-mer oligoribodeoxynucleotide is reported.

  甘露糖和二甘露糖衍生物已用一个与阴离子连接的疏水性间隔基制备，并被转化为适合与DNA / RNA合成仪上的寡核糖脱氧核苷酸缀合的亚磷酰胺衍生物。报道了单甘露糖苷连接的15聚体寡核糖脱氧核苷酸的合成。
• Glycosylations Directed by the Armed-Disarmed Effect with Acceptors Containing a Single Ester Group
  作者：Thomas H. Schmidt、Robert Madsen

  DOI：10.1002/ejoc.200700347

  日期：2007.8

  A selective glycosylation reaction controlled by the armed-disarmed effect is described by the use of phenyl thioglycosides. The donor thioglycoside is fully protected with benzyl ethers while the acceptor thioglycoside contains benzyl ethers at position 2 and 3 and a strongly electron-withdrawing pentafluorobenzoate ester group at position 6. The coupling can be performed with galactose, glucose,

  通过使用苯基硫糖苷描述了由武装-解除武装效应控制的选择性糖基化反应。供体硫糖苷被苄基醚完全保护，而受体硫糖苷在 2 位和 3 位包含苄基醚，在 6 位包含一个强吸电子的五氟苯甲酸酯基团。偶联可以用半乳糖、葡萄糖、甘露糖和邻苯二甲酰亚胺保护葡萄糖胺以良好的产率提供相应的 1,4-连接的二糖。如果添加另一个受体和更多的促进剂，这些二糖可以作为糖基供体在同一个锅中进行额外的偶联反应。这样，可以在一次操作中实现两次连续的糖基化以提供三糖。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
• Glycosylation with Disarmed Glycosyl Bromides Promoted by Iodonium Ions
  作者：Gyrithe Lanz、Robert Madsen

  DOI：10.1002/ejoc.201600545

  日期：2016.6

  Iodonium ions have been developed for activating glycosyl bromides in the coupling to glycosyl acceptors. The iodonium ions are generated from N-iodosuccinimide and a protic acid such as camphorsulfonic acid or triflic acid, where the latter gives the most reactive promoter system. The couplings occur with the release of iodine monobromide, and the best results are obtained with benzoylated glycosyl

  碘鎓离子已被开发用于激活与糖基受体偶联的糖基溴化物。碘鎓离子由 N-碘代琥珀酰亚胺和质子酸（如樟脑磺酸或三氟甲磺酸）产生，其中后者提供最具反应性的促进剂系统。偶联随着一溴化碘的释放而发生，使用苯甲酰化糖基供体和受体获得最佳结果。通过这种方式，去武装的糖基溴化物可以作为糖基供体，而无需使用重金属盐。
• A facile approach to phosphonic acid diesters
  作者：Qiang Xiao、Yong Ju、Yufen Zhao

  DOI：10.1002/hc.10130

  日期：——

  The symmetric H-phosphonates of carbohydrate and other compounds were conveniently prepared by direct transesterification of the corresponding monohydroxylic compounds with diphenyl phosphite. The approach has the merits of mild reaction conditions and high yields. © 2003 Wiley Periodicals, Inc. Heteroatom Chem 14:208–210, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI

  碳水化合物和其他化合物的对称 H-膦酸酯可以通过相应的单羟基化合物与亚磷酸二苯酯的直接酯交换来方便地制备。该方法具有反应条件温和、收率高等优点。© 2003 Wiley Periodicals, Inc. 杂原子化学 14:208–210, 2003; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.10130