methyl O-(2,3,4,6-tetra-O-benzyl-D-glucopyranosyl)-(1-4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside | 84799-76-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl O-(2,3,4,6-tetra-O-benzyl-D-glucopyranosyl)-(1-4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside
• 英文别名: methyl 2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-D-glucopyranosyl)-α-D-glucopyranoside；Bn(-2)[Bn(-3)][Bn(-4)][Bn(-6)]Glc(?1-4)[Bn(-2)][Bn(-3)][Bn(-6)]a-Glc1Me；(2S,3R,4S,5R,6R)-2-methoxy-3,4-bis(phenylmethoxy)-6-(phenylmethoxymethyl)-5-[(3R,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxyoxane
• CAS: 84799-76-8
• 化学式: C₆₂H₆₆O₁₁
• 分子量: 987.199
• InChiKey: XGUQGDPCAPRZDC-WKXGLXGMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.5
• 重原子数：
  73
• 可旋转键数：
  26
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  11

反应信息

• 作为产物：
  描述：

  methyl 2,3-O-dibenzyl-4,6-O-benzylidene-α-D-glucopyranoside 在 四氟硼酸-二乙醚络合物 、 lithium tetrafluoroborate 、 3 A molecular sieve 、 sodium cyanoborohydride 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 0.25h， 生成 methyl O-(2,3,4,6-tetra-O-benzyl-D-glucopyranosyl)-(1-4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside
  参考文献：
  名称：

  由苯基或乙基1-硫代糖苷电合成二糖

  摘要：

  糖基供体苯基和乙基2,3,4,6-四-O-苄基-1-硫代-β-D-吡喃葡萄糖苷在干燥的乙腈中在各种伯和仲糖醇的存在下进行恒流电解未分裂的细胞，以良好的产率选择性地产生了β-连接的二糖衍生物。苯基2,3,4,6-四-O-苯甲酰基-1-硫代-β-D-吡喃葡萄糖苷以良好至中等的产率专门提供了β-葡萄糖苷。

  DOI：

  10.1016/0008-6215(83)85004-6

文献信息

• Palladium(II) Promoted O-Glycosylation Involving 1-Thio-2-enosides and 3-Thio-1-enoses
  作者：Kazuyoshi Takeda、Hiroko Nakamura、Akira Ayabe、Akira Akiyama、Yoshihiro Harigaya、Yoshihisa Mizuno

  DOI：10.1016/0040-4039(94)88180-4

  日期：1994.1

  O-glycosylation of thioglycosyl donors, 2,3-dideoxy-hex-1-thio-2-enopyranosides, 1,2-dideoxy-hex-3-thio-1-nopyranoses and 2-pyridyl 2,3,4,6-tetra-O-benzyl-1-thio-β-D-glucopyranoside was achieved by use of a Pd(II) activator which was prepared from bis(acetonitrile)dichloropalladium(II)(Pd(CH3CN)2Cl2) and silver triflate (AgOTf).

  ø thioglycosyl供体，2,3-二脱氧己-1-硫代-2- enopyranosides，1,2-二脱氧己-3-硫基-1- nopyranoses和2-吡啶基的-glycosylation 2,3,4,6-四ø苄基-1-硫代β- d吡喃葡萄糖苷通过使用其从双制备钯（II）的活化剂来实现（乙腈）二氯化钯（II）（加入Pd（CH 3 CN）2氯2）和三氟甲磺酸银（AgOTf）。
• An efficient construction of 1,2-trans-β-glycosidic linkages capitalizing on glycopyranosyl N,N,N′,N′-tetramethylphosphroamidates as shelf-stable glycosyl donors
  作者：Shun-ichi Hashimoto、Yuki Yanagiya、Takeshi Honda、Hideki Harada、Shiro Ikegami

  DOI：10.1016/s0040-4039(00)92679-0

  日期：1992.6

  stereocontrolled 1,2-trans-β-glycosidation reaction with or without neighbouring group participation has been developed by using benzyl- or benzoyl-protected glycopyranosyl N,N,N',N'-tetramethylphosphoroamidates as shelf-stable glycosyl donors in the presence of trimethylsilyl trifluoromethanesulfonate or boron trifluoride etherate. Several notable features of the present method not observed with the diphenyl

  通过使用苄基或苯甲酰基保护的吡喃葡萄糖基N，N，N'，N'-四甲基磷酰胺基酸酯作为在货架上稳定的糖基供体，已经开发了具有或不具有邻近基团参与的高度立体控制的1,2-反式-β-糖苷化反应。存在三甲基甲硅烷基三氟甲磺酸盐或三氟化硼醚化物。还描述了用磷酸二苯酯法未观察到的本方法的几个显着特征。
• An efficient construction of 1,2-trans-.BETA.-glycosidic linkages via benzyl-protected glycopyranosyl P,P-diphenyl-N-(p-toluenesulfonyl)-phosphinimidates.
  作者：Shun-ichi HASHIMOTO、Takeshi HONDA、Shiro IKEGAMI

  DOI：10.1248/cpb.38.2323

  日期：——

  An efficient 1, 2-trans-glycosidation reaction withon neighbouring group participation has been developed using benzyl-protected P, P-diphenyl-N-(p-toluensulfonyl)phosphinimidates as glycosyl donors in the presence of trimethylsilyl triflate or boron trifluoride etherate.

  使用苄基保护的P,P-二苯基-N-(对甲苯磺酰)膦亚胺为糖基供体，在三甲基硅基三氟甲磺酸酯或三氟化硼乙醚存在下，开发了一种无邻位参与的高效1,2-反式糖苷化反应。
• An efficient glycosylation protocol with glycosyl ortho-alkynylbenzoates as donors under the catalysis of Ph3PAuOTf
  作者：Yao Li、You Yang、Biao Yu

  DOI：10.1016/j.tetlet.2008.04.017

  日期：2008.5

  A new and powerful glycosylation protocol with glycosyl ortho-alkynylbenzoates as donors and Ph3PAuOTf as a promoter is disclosed. The donors are readily available and stable; the glycosidic coupling yields are generally excellent; the promotion system is catalytic, neutral, and orthogonal to the known glycosylation conditions.

  公开了一种新的且功能强大的糖基化方案，其中糖基邻炔基苯甲酸酯为供体，Ph 3 PAuOTf为启动子。捐助者随时可用且稳定；糖苷偶联的产量通常是优异的；促进系统是催化的，中性的，并且与已知的糖基化条件正交。
• Gold(III)-Catalyzed Glycosylation using Phenylpropiolate Glycosides: Phenylpropiolic Acid, An Easily Separable and Reusable Leaving Group
  作者：Mukta Shaw、Rima Thakur、Amit Kumar

  DOI：10.1021/acs.joc.8b02422

  日期：2019.1.18

  synthesized benchtop stable phenylpropiolate glycosyl (PPG) donors. Gold(III)-catalyzed activation of PPGs proceeds well with various carbohydrate and noncarbohydrate-based glycosyl acceptors and leads to their corresponding O/N-glycosides in good to excellent yields with regeneration of reusable and easily separable phenylpropiolic acid. Differentially protected PPGs reacted well under the optimized reaction

  使用新合成的台式稳定苯丙酸苯丙酯糖基（PPG）供体，开发了一种有效且操作简单的金（III）催化的糖基化方案。金（III）催化的PPG活化与各种基于碳水化合物和非碳水化合物的糖基受体进行得很好，并导致其相应的O / N-糖苷的收率好至极好，并具有可重复使用和易于分离的苯丙酸的再生。差异保护的PPG在优化的反应条件下反应良好。特别地，在甘露糖基和鼠李糖基PPG供体上观察到良好的异头选择性。初步的机理研究表明，与酯基相邻的三键的存在对于激活至关重要，并且基于PPG的供体显示出比类似的乙酸和苯甲酸酯供体更高的反应性。