methyl (2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranoside | 635321-20-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranoside
• 英文别名: methyl 2,3,4-tri-O-benzoyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-α-D-glucopyranoside；methyl 2,3,4-tri-O-benzoyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-α-D-mannopyranoside；Bn(-2)[Bn(-3)][Bn(-4)][Bn(-6)]Man(a1-6)[Bz(-2)][Bz(-3)][Bz(-4)]a-Man1Me；[(2R,3R,4S,5S,6S)-4,5-dibenzoyloxy-6-methoxy-2-[[(2S,3S,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxymethyl]oxan-3-yl] benzoate
• CAS: 635321-20-9
• 化学式: C₆₂H₆₀O₁₄
• 分子量: 1029.15
• InChiKey: RGZPHINDFHDVMO-VBVRPMGESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.1
• 重原子数：
  76
• 可旋转键数：
  26
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  153
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为产物：
  描述：

  在 gold(III) chloride 、 silver hexafluoroantimonate 、 sodium hydride 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 4.0h， 生成 methyl (2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranoside
  参考文献：
  名称：

  Versatile gold catalyzed transglycosidation at ambient temperature

  摘要：

  使用少量金盐催化，以稳定的烷基糖供体进行糖基化反应具有良好的应用前景。在此，我们发现1-乙炔基环己烷糖苷在室温下可以作为新型供体，并且机理研究表明离去基团直接脱离。

  DOI：

  10.1039/c2cc32649c

文献信息

• Methyl glycosides are identified as glycosyl donors for the synthesis of glycosides, disaccharides and oligosaccharides
  作者：Srinivasa Rao Vidadala、Srinivas Hotha

  DOI：10.1039/b822526e

  日期：——

  Stable methyl glycosides are identified as glycosyl donors in the presence of AuBr(3) in acetonitrile; a panel of aglycones comprising aliphatic, alicyclic, steroidal and sugar alcohols are examined successfully for the glycosylation reaction and methyl glycosides of di- and tri- saccharides are converted to corresponding tri- and tetra-saccharides exploiting salient features of our novel activation

  在乙腈中存在AuBr（3）的情况下，稳定的甲基糖苷被鉴定为糖基供体；利用我们新颖的激活方案的显着特征，成功地检测了一组包含脂肪族，脂环族，甾族和糖醇的糖苷配基的糖基化反应，并将二糖和三糖的甲基糖苷转化为相应的三糖和四糖。
• Use of the methylsulfenyl cation as an activator for glycosylation reactions with alkyl (aryl) l-thioglycopyranosides: synthesis of methyl O-(2-acetamido-2-deoxy-β-d-glucopyranosyl)-(1→ 2)-α-d-glucopyranoside, a derivative of the core trisaccharide of E. coli K12
  作者：Falguni Dasgupta、Per J. Garegg

  DOI：10.1016/0008-6215(90)84082-6

  日期：1990.7

  Methylsulfenyl bromide (MSB) and methylsulfenyl trifluoromethanesulfonate (MST) have been used to prepare 1,2-cis-linked disaccharides. Ethyl (phenyl) 1-thio-beta-D-gluco- and galacto-pyranosides having non-participating (benzyloxy) protecting groups were used as the donors. The alpha beta-ratio of the products depended on the promoter and conditions of reaction. Intimate ion-pairs, formed initially

  甲基亚磺酰基溴（MSB）和甲基亚磺酰基三氟甲磺酸盐（MST）已用于制备1,2-顺式连接的二糖。具有非参与式（苄氧基）保护基的乙基（苯基）1-硫-β-D-葡萄糖基和半乳糖吡喃糖苷用作供体。产物的α-β比率取决于启动子和反应条件。最初形成的亲密离子对可能对糖基化的空间结果负责。因此，用乙基2,3,4,6-四-O-苄基-α-D-甘露吡喃糖苷作为供体，使用MSB作为活化剂可以生产适量的β-连接的二糖。描述了含有1，2-顺式和1，2-反式连接的标题三糖苷的合成。
• Glycosylation with glycosyl benzyl phthalates as a new type of glycosyl donorElectronic supplementary information (ESI) available: Spectroscopic and analytical data for all new compounds. See http://www.rsc.org/suppdata/ob/b4/b405793g/
  作者：Kwan Soo Kim、Yong Joo Lee、Hye Young Kim、Sung Soo Kang、Soon Young Kwon

  DOI：10.1039/b405793g

  日期：——

  A glucopyranosyl benzyl phthalate, two mannopyranosyl benzyl phthalates, and a 2-deoxyglucopyranosyl benzyl phthalate, which were prepared from the corresponding 1-hydroxy sugars and benzyl hydrogen phthalate, were found to be efficient glycosyl donors in the glycosylations of various glycosyl acceptors using TMSOTf as a promoter.

  一种葡萄糖吡喃苯基邻苯二甲酸酯、两种甘露糖吡喃苯基邻苯二甲酸酯和一种2-脱氧葡萄糖吡喃苯基邻苯二甲酸酯是通过相应的1-羟基糖和苯基氢邻苯二甲酸酯制备的，它们被发现是TMSOTf作为促进剂时在多种糖苷受体的糖苷化反应中高效的糖苷供体。
• Sequential one-pot glycosylation with glycosyl N-trichloroacetylcarbamate and trichloroacetate including dehydrative approach using 1-hydroxy sugars
  作者：Tatsuya Shirahata、Asami Kojima、Satoko Teruya、Jun-ichi Matsuo、Masaki Yokoyama、Shogo Unagiike、Toshiaki Sunazuka、Kazuishi Makino、Eisuke Kaji、Satoshi Ōmura、Yoshinori Kobayashi

  DOI：10.1016/j.tet.2011.06.006

  日期：2011.9

  An efficient sequential one-pot glycosylation has been developed with glycosyl trichlorocarbamate and trichloroacetate activated by the same Lewis acid and enabled by a change in reaction temperature. The act-selective glycosylation was achieved using glucose, galactose, and mannose substrates after investigation into the reactivities of the two types of glycosyl donors. Sequential one-pot dehydrative glycosylation, including in situ preparation of glycosyl donors followed by generation of two glycosyl bonds, provided three types of trisaccharide. (C) 2011 Published by Elsevier Ltd.
• Versatile gold catalyzed transglycosidation at ambient temperature
  作者：Abhijeet K. Kayastha、Srinivas Hotha

  DOI：10.1039/c2cc32649c

  日期：——

  Glycosidation with stable alkyl glycosyl donors using a catalytic amount of gold salts is promising. Herein, 1-ethynylcyclohexanyl glycosides are identified as novel donors at room temperature and mechanistic investigation showed that the leaving group simply extrudes out.

  使用少量金盐催化，以稳定的烷基糖供体进行糖基化反应具有良好的应用前景。在此，我们发现1-乙炔基环己烷糖苷在室温下可以作为新型供体，并且机理研究表明离去基团直接脱离。