phenyl 1-thio-6-O-triphenylmethyl-β-D-galactopyranoside | 220774-86-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: phenyl 1-thio-6-O-triphenylmethyl-β-D-galactopyranoside
• 英文别名: phenylthio 6-O-triphenylmethyl-β-D-galactopyranoside；phenyl 1-thio-6-O-trityl-β-D-galactopyranoside；phenyl 6-O-trityl-1-thio-β-D-galactopyranoside；(2S,3R,4S,5R,6R)-2-phenylsulfanyl-6-(trityloxymethyl)oxane-3,4,5-triol
• CAS: 220774-86-7
• 化学式: C₃₁H₃₀O₅S
• 分子量: 514.642
• InChiKey: QZYZPRXHJWCXSY-QBHLCAJUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  37
• 可旋转键数：
  8
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.23
• 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 1-thio-6-O-triphenylmethyl-β-D-galactopyranoside 在 咪唑 、 重铬酸吡啶 、 Amberlyst 15 H⁺ 、 乙酸酐 、 四丁基碘化铵 、 sodium hydride 作用下， 以 二氯甲烷 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 9.0h， 生成 tert-butyl (phenyl 2,3,4-tri-O-benzyl-1-thio-β-D-galactopyranosid)uronate
  参考文献：
  名称：

  二糖4-O-α-D-半乳糖醛糖基-D-半乳糖醛酸的两种单甲酯的合成，以及用于制备在一定序列中被乌龙酸酯化的高级低聚物的前体的合成。

  摘要：

  甲基（α-D-吡喃半乳糖醛酸）-（1-> 4）-D-吡喃半乳糖醛酸和甲基α-D-吡喃半乳糖基-尿酸-（1-> 4）-D-吡喃半乳糖醛酸通过偶联甲基（苄基2,3-二-O-苄基-β-D-吡喃半乳糖苷）尿酸酯（3）或苄基（苄基2,3-二-O-苄基-β-D-吡喃半乳糖苷）尿酸酯（4）与苄基（苯基2 ，3,4-三-O-苄基-1-硫代-β-D-吡喃半乳糖苷）尿酸和（苯基2,3,4-三-O-苄基-1-硫代-β-D-吡喃半乳糖苷）尿酸，分别使用N-碘琥珀酰亚胺和三氟甲磺酸作为促进剂，然后除去苄基。4'-OH未保护的二聚体苄基（2,3-二-O-苄基-α-D-吡喃半乳糖苷）（---> 4）-（苄基2,3-二-O-苄基-β-D -galactopyranosid）尿酸盐和（2,3-di-O-苄基-alpha-D-galactopyranosyluronate）甲基-（1-> 4）由（苯基2，3-二-O-苄基-1

  DOI：

  10.1016/s0008-6215(98)00312-7
• 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 吡啶 、 4-二甲氨基吡啶 、 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 46.0h， 生成 phenyl 1-thio-6-O-triphenylmethyl-β-D-galactopyranoside
  参考文献：
  名称：

  唾液酸化聚糖链的不同合成：聚合物载体，树脂捕获释放和化学酶策略的组合使用。

  摘要：

  DOI：

  10.1002/anie.200500777

文献信息

• Rational Design, Synthesis, and Characterization of Novel Inhibitors for Human β1,4-Galactosyltransferase
  作者：Kenji Takaya、Noriko Nagahori、Masaki Kurogochi、Tetsuya Furuike、Nobuaki Miura、Kenji Monde、Yuan Chuan Lee、Shin-Ichiro Nishimura

  DOI：10.1021/jm0504297

  日期：2005.9.1

  An affinity labeling reagent, uridine 5'-(6-amino-2-[(7-bromomethyl-2-naphthyl)methoxy-carbonylmethoxy]ethoxy}acetyl-6-deoxy-alpha-D-galactopyranosyl) diphosphate (1a), was designed on the basis of 3D docking simulation and synthesized to investigate the functional role of Trp310 residue located in the small loop near the active site of human recombinant galactosyltransferase (beta GalT-1). Mass spectrometric analysis revealed that the Trp310 residue of beta GalT1 can be selectively modified with the naphthylmethyl group of compound la at the C-3 position of the indole ring. This result motivated us to synthesize novel uridine-5'-diphosphogalactose (UDP-Gal) analogues as candidates for mechanism-based inhibitors for beta GalT-1. We found that uridine 5'-(6-O-[10-(2-naphthyl)-3,6,9-trioxadecanyl]-alpha-D-galactopyranosyl) diphosphate (2) is the strongest inhibitor (K-i = 1.86 mu M) against UDP-Gal (K-m = 4.91 mu M) among compounds reported previously. A cold spray ionization time-of-flight mass spectrometry study demonstrated that the complex of this inhibitor and beta GalT-1 cannot interact with an acceptor substrate in the presence of Mn2+.
• Synthesis of 3,6-branched arabinogalactan-type tetra- and hexasaccharides for characterization of monoclonal antibodies
  作者：Anikó Fekete、Anikó Borbás、Sándor Antus、András Lipták

  DOI：10.1016/j.carres.2009.04.025

  日期：2009.8

  Synthesis of tetra- and hexasaccharides built up from a beta-(1 -> 6)-linked galactopyranosyl backbone with arabinofuranosyl side chains at position 3 and with a 3-aminopropyl spacer related to arabinogalactans is described. These oligosaccharides were prepared for investigation of monoclonal antibodies raised against arabinogalactan proteins (AGPs) from pressed juice of Echinacea purpurea. (C) 2009 Elsevier Ltd. All rights reserved.
• Application of Ball Milling Technology to Carbohydrate Reactions: I. Regioselective Primary Hydroxyl Protection of Hexosides and Nucleoside by Planetary Ball Milling‡
  作者：Premanand Ramrao Patil、K. P. Ravindranathan Kartha

  DOI：10.1080/07328300802218713

  日期：2008.7

  Dry ball milling of hexosides with trityl chloride in the presence of DABCO or Na2CO3 has been found to result in their complete conversion to the respective 6-O-trityl ethers. Further wet grinding of the reaction mixture with Ac2O in the presence of DMAP led to the respective fully protected hexosides in good to excellent yields after isolation. It has been found to be an effective one-pot two-step synthesis under solvent-free condition. The speed of homogenization has been shown to highly influence the rate and outcome of the reaction, and commercially available planetary ball mill has been proved to be very convenient for carrying out the reaction under standardized and reproducible conditions.
• Stereodirecting Effect of the Pyranosyl C-5 Substituent in Glycosylation Reactions
  作者：Jasper Dinkelaar、Ana Rae de Jong、Robert van Meer、Mark Somers、Gerrit Lodder、Herman S. Overkleeft、Jeroen D. C. Codée、Gijsbert A. van der Marel

  DOI：10.1021/jo900662v

  日期：2009.7.17

  The stereodirecting effect of the glycosyl C-5 substituent has been investigated in a series of D-pyranosyl thioglycoside donors and related to their preferred positions in the intermediate H-3(4) and H-4(3) half-chair oxacarbenium ions. Computational studies showed that an axially positioned C-5 carboxylate ester can stabilize the (3)H4 half-chair oxacarbenium ion conformer by donating electron densit from its carbonyl function into the electron-poor oxacarbenium ion functionality. A similar stabilization can be achieved by a C-5 benzyloxyrnethyl group, but,the magnitude of this stabilization is significantly smaller than for the C-5 carboxylate ester. As a result, the preference of the C-5 benzyloxymethyl to occupy an axial position in the half-chair oxacarbenium ions is much reduced compared to the C-5 carboxylate ester. To minimize steric interactions, a C-5 methyl group prefers to adopt an equatorial position and therefore favors the H-4(3) half-chair oxacarbenium ion. When all pyranosyl substituents occupy their favored position in one of the two intermediate half-chair oxacarbenium ions, highly stereoselective glycosylations can be achieved as revealed by the excellent beta-selectivity of mannuronate esters and alpha-selectivity of 6-deoxygulosides.
• Expeditious route to F unit building block of moenomycin A
  作者：Ramesh Kakarla、Manuka Ghosh、Jan A. Anderson、Richard G. Dulina、Michael J. Sofia

  DOI：10.1016/s0040-4039(98)80003-8

  日期：1999.1

  Synthesis of the versatile F sugar unit building block of moenomycin A, Phenyl 2-O-levulinoyl-4-C-methyl-1-thio-beta-D-glucopyranosiduronic acid is described starting from phenyl 1-thio-beta-D-galactopyranoside. The key synthetic steps included: (I) Regioselective protection of the 3-OH group of phenyl 6-O-trityl-1-thio-beta-D-galactopyranoside as its TBDMS ether, (ii) TBAF mediated TBDMS group migration from the C-3 to C-2 position of phenyl 3-O-TBDMS-4-C-methyl-6-O-trityl-1-thio-beta-D-galactopyranoside, and (iii) Selective deprotection of TBDMS and trityl groups in phenyl 2-O-levulinoyl-3-O-TBDMS-4-C-methyl-6-O-trityl-1 -thio-beta-D-glucopyranoside by DDQ. (C) 1998 Elsevier Science Ltd. All rights reserved.