phenyl 3-O-benzyl-1-thio-β-D-galactopyranoside | 196876-47-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: phenyl 3-O-benzyl-1-thio-β-D-galactopyranoside
• 英文别名: Phenyl 3-O-benzyl-1-thio-beta-D-galactopyranoside；(2R,3S,4S,5R,6S)-2-(hydroxymethyl)-4-phenylmethoxy-6-phenylsulfanyloxane-3,5-diol
• CAS: 196876-47-8
• 化学式: C₁₉H₂₂O₅S
• 分子量: 362.447
• InChiKey: LPMBAPQCLQUXNK-LFDJNIOPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  25
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  104
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  phenyl 3-O-benzyl-1-thio-β-D-galactopyranoside 在 palladium on activated charcoal 吡啶 、 咪唑 、 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 4 A molecular sieve 、 氢气 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 DMTST 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 27.83h， 生成 2,3,4-tri-O-acetyl-α-L-fucopyranosyl-(1->3)-2,4,6-tri-O-acetyl-β-D-galactopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-α-D-galactopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Synthetic studies on glycosphingolipids from the parasite Echinococcus multilocularis

  摘要：

  Novel neutral glycosphingolipids isolated from the metacestodes of Echinococcus multilocularis by Persat, may be expected to be involved in host-parasite interactions. We have synthesized these glycosphingolipid analogues containing 2-branched fatty alkyl residues in place of ceramide. The glycosylation of galactosyl donors 4 and 5 with each of the accepters 2 and 11 in the presence of N-iodosuccinimide (NIS)/TfOH, and the glycosylation of fucosyl donor 13 with accepters 12 and 20 in the presence of dimethyl(methylthio)sulfonium triflate (DMTST) gave the desired oligosaccharide derivatives at good yield. The fully per-O-acylated 2-(trimethylsilyl)ethyl glycosides 6, 15, 21, and 26 were converted to glycosylimidates 7, 16, 22, and 27, which were condensed with 2-(tetradecyl)hexadecanol and subsequently deacylated give four target glycosphingolipid analogues. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(99)00027-0
• 作为产物：
  描述：

  2,3,4,6-O-四乙酰基-1-硫代-β-D-苯基半乳糖苷 在 sodium methylate 、 二正丁基氧化锡 作用下， 以 甲醇 为溶剂， 反应 7.0h， 生成 phenyl 3-O-benzyl-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  Regioselective Glycosylation of Glucosamine and Galactosamine Derivates Using O-Pivaloyl Galactosyl Donors

  摘要：

  Penta-O-pivaloyl-galactopyranose和tetra-O-pivaloyl-galactopyranosyl溴在亲电活化后与6-O-保护的2-azido-galactosides反应，高选择性地形成Thomsen-Friedenreich抗原二糖的前体结构，但产率较低。使用4,6-Obenzylidene保护的2-azidogalactosides和2-O-pivaloyl苯硫基半乳苷，可以得到这种类型的T-抗原二糖，产率较高。4,6-O-benzylidene保护的葡萄糖氨基衍生物与O-pivaloyl保护的半乳苷溴的糖基化反应有效地产生了乳糖氨二糖。甚至通过这种方法，一种硫代糖苷也可以有效地被半乳苷化，形成一种作为潜在糖基供体的二糖硫代糖苷。

  DOI：

  10.1515/znb-2003-0808

文献信息

• Regioselective mono and multiple alkylation of diols and polyols catalyzed by organotin and its applications on the synthesis of value-added carbohydrate intermediates
  作者：Hengfu Xu、Bo Ren、Wei Zhao、Xiaoting Xin、Yuchao Lu、Yuxin Pei、Hai Dong、Zhichao Pei

  DOI：10.1016/j.tet.2016.04.076

  日期：2016.6

  A catalytic amount of dibutyltin dichloride was used to develop regioselective alkylation of diols and multiple alkylation of polyols. Alkyl groups, including allyl, alkynyl and long-chain alkyl groups, were successfully introduced to one or two hydroxyl groups of carbohydrate and nonsugar substrates. In most cases, excellent isolation yields were obtained. The alkynylated carbohydrates may be used

  催化量的二氯化二丁基锡用于发展二醇的区域选择性烷基化和多元醇的多重烷基化。包括烯丙基，炔基和长链烷基在内的烷基已成功引入到碳水化合物和非糖底物的一个或两个羟基上。在大多数情况下，可获得优异的分离产率。炔化的碳水化合物可用于通过点击反应以高效率合成寡糖模拟物。具有长链烷基的碳水化合物可用作表面活性剂，本研究中的实验进一步证明了这一点。
• Efficient one-pot per-O-acetylation–thioglycosidation of native sugars, 4,6-O-arylidenation and one-pot 4,6-O-benzylidenation–acetylation of S-/O-glycosides catalyzed by Mg(OTf)₂
  作者：Mana Mohan Mukherjee、Nabamita Basu、Aritra Chaudhury、Rina Ghosh

  DOI：10.1039/c6ra23198e

  日期：——

  A sequential one-pot per-O-acetylation–S-/O-glycosidation of native mono and disaccharides under solvent free conditions using 0.5 mole% of Mg(OTf)2 as a non-hygroscopic, recyclable catalyst is reported. Regioselective 4,6-O-arylidenation of glycosides and thioglycosides with benzaldehyde or p-methoxybenzaldehyde dimethyl acetal is catalyzed by 10 mole% of Mg(OTf)2 to produce the corresponding 4,6-O-arylidenated

  据报道，在无溶剂条件下，使用0.5摩尔％的Mg（OTf）2作为非吸湿性，可循环利用的催化剂，对单糖和双糖进行连续一锅过O-乙酰化– S- / O-糖基化反应。糖苷和硫糖苷与苯甲醛或对甲氧基苯甲醛二甲基乙缩醛的区域选择性4,6- O-芳基化反应可通过10摩尔％的Mg（OTf）2催化生成相应的4,6- O-芳基化产物。Mg（OTf）2也可以高产率地介导单糖和二糖基糖苷和硫代糖苷的顺序一锅苯甲基化-乙酰化。
• The Total Synthesis of Moenomycin A
  作者：James G. Taylor、Xuechen Li、Markus Oberthür、Wenjiang Zhu、Daniel E. Kahne

  DOI：10.1021/ja065907x

  日期：2006.11.1

  Moenomycin A is the only known natural antibiotic that inhibits bacterial cell wall synthesis by binding to the transglycosylases that catalyze formation of the carbohydrate chains of peptidoglycan. We report here the total synthesis of moenomycin A using the sulfoxide glycosylation method. A newly discovered byproduct of sulfoxide reactions was isolated that resulted in substantial loss of the glycosyl

  Moenomycin A 是唯一一种已知的天然抗生素，它通过与催化肽聚糖碳水化合物链形成的转糖基酶结合来抑制细菌细胞壁合成。我们在这里报告了使用亚砜糖基化方法对 moenomycin A 的全合成。分离出一种新发现的亚砜反应副产物，该副产物导致糖基受体的大量损失。介绍了一种抑制这种副产物的通用方法，它使糖基化能够有效地进行。亚砜糖基化的反向添加协议也证明在构建一些糖苷键时必不可少。合成路线灵活，可以构建衍生物以进一步分析莫诺霉素 A 的作用机制。
• Regioselective Benzylation of Diols and Polyols by Catalytic Amounts of an Organotin Reagent
  作者：Hengfu Xu、Yuchao Lu、Yixuan Zhou、Bo Ren、Yuxin Pei、Hai Dong、Zhichao Pei

  DOI：10.1002/adsc.201301152

  日期：2014.5.26

  An efficient one‐pot method for the selective benzylation of diols and polyols using 0.1 equiv. of organotin reagents and tetrabutylammonium bromide as catalyst has been developed. The diols and polyols containing a cis‐vicinal diol were regioselectively benzylated in 70–94% isolated yields. A catalytic reaction mechanism was also proposed.

  一种高效的一锅法，可使用0.1当量对二醇和多元醇进行选择性苄基化。已开发出有机锡试剂和四丁基溴化铵作为催化剂。含顺式-邻位二醇的二醇和多元醇被区域选择性地苄基化，分离产率为70-94％。还提出了催化反应机理。
• DE-<i>O</i>-BENZYLATION OF STERICALLY HINDERED BENZYL ETHERS[1]
  作者：John G. Riley、T. Bruce Grindley

  DOI：10.1081/car-100103955

  日期：2001.3.31

  Sterically hindered benzyl ethers that cannot be removed by hydrogenolysis with a variety of catalysts are removed readily by the reaction with N-bromosuccinimide and light in the presence of aqueous calcium carbonate, a reaction developed by Binkley and Hehemann. It was found that these conditions are compatible with the presence of phthalimides and glycosyl sulfides and fluorides, in addition to

  在碳酸钙水溶液存在下，与N-溴代琥珀酰亚胺和光反应，可以很容易地除去不能用多种催化剂进行氢解除去的位阻苄基醚，该反应是由Binkley和Hehemann开发的。已经发现，除了先前显示为惰性的基团以外，这些条件还与邻苯二甲酰亚胺，糖基硫化物和氟化物的存在相容。