1,2,3,4-tetra-O-benzoyl-D-glucopyranoside | 590367-95-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1,2,3,4-tetra-O-benzoyl-D-glucopyranoside
• 英文别名: 1,2,3,4-Tetra-O-benzoyl-D-glucopyranose；[(2R,3R,4S,5R)-4,5,6-tribenzoyloxy-2-(hydroxymethyl)oxan-3-yl] benzoate
• CAS: 590367-95-6
• 化学式: C₃₄H₂₈O₁₀
• 分子量: 596.59
• InChiKey: JSXMRQAFUOMKAD-RIKJQNKOSA-N

物化性质

• 熔点：
  >75°C (Subl.)
• 溶解度：
  可溶于氯仿（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  44
• 可旋转键数：
  13
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  135
• 氢给体数：
  1
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  1,2,3,4-tetra-O-benzoyl-D-glucopyranoside 在 咪唑 、 氨 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 生成 Bz(-2)[Bz(-3)][Bz(-4)][TBDMS(-6)]Glc
  参考文献：
  名称：

  Total Synthesis of the Antiallergic Naphtho-α-pyrone Tetraglucoside, Cassiaside C₂, Isolated from Cassia Seeds

  摘要：

  Toralactone 9-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl-(1-->3)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (1, cassiaside C-2) isolated from Cassia obtusifolia L. and showing strong antiallergic activity, was concisely synthesized employing glycosyl trifluoroacetimidates as glycosylation agents. The unique naphtho-alpha-pyrone structure of toralactone (5) was constructed by condensation of orsellinate 8 with pyrone 9 in the presence of LDA as developed by Staunton and co-workers. The naphthol of toralactone showed minimal reactivity as an acceptor and was screened with various glycosyl donors. It is finally concluded that sacrifice of an excess amount of the trifluoroacetimidate or trichloroacetimidate donors (6f/6g, 6.0 equiv) in the presence of a catalytic amount of TMSOTf (0.05 and 0.3 equiv, respectively) afforded excellent yields of the coupling product, which was otherwise only a minor product under a variety of conditions examined.

  DOI：

  10.1021/jo034223u
• 作为产物：
  描述：

  D-葡萄糖 在 吡啶 、 硫酸 、 水 作用下， 以 二氯甲烷 为溶剂， 反应 17.0h， 生成 1,2,3,4-tetra-O-benzoyl-D-glucopyranoside
  参考文献：
  名称：

  Synthesis of a-O- and a-S-Glycosphingolipids Related to Sphingomonous cell Wall Antigens Using Anomerisation

  摘要：

  来自Spingomonadacaece的糖脂类类似物，具有O-、S-和SO2-连接，通过TiCl4催化的螯合诱导的异构化进行了制备。其中包括具有O-和S-糖苷键的中间体异构化的例子，以及β-硫葡萄糖醇酸（β-糖苷硫醇）的异构化。β-O-葡萄糖醛酸酯和β-O-半乳糖醛酸酯的前体采用苯甲酰化三氯乙酰胺高效制备。β-糖苷硫醇是β-S-衍生物的前体。含有三唑的天然糖脂类模仿物使用CuI催化的叠氮烷炔环加成反应在THF中制备。当前正在评估这些糖脂抗原对iNKT细胞的影响。

  DOI：

  10.3390/molecules180911198

文献信息

• Concise synthesis of a new triterpenoid saponin from the roots of Gypsophila oldhamiana and its derivatives as α-glucosidase inhibitors
  作者：Qingchao Liu、Tiantian Guo、Fahui Li、Dong Li

  DOI：10.1039/c6nj01602b

  日期：——

  The first synthesis of the triterpenoid saponin 1 and its derivatives 2–3 was efficiently achieved in an efficient and practical strategy with an odourless 2-methyl-5-tert-butylphenyl (Mbp) thioglycoside and a N-phenyltrifluoroacetimidate donor as a key step, and their inhibitory activities against α-glucosidase and α-amylase were evaluated in vitro. The preliminary structure–activity relationship

  以无味的2-甲基-5-叔丁基苯基（Mbp）硫代糖苷和N-苯基三氟乙酰亚氨酸酯供体为关键步骤，有效而有效地实现了三萜皂苷1及其衍生物2-3的首次合成，和它们对α葡糖苷酶和α淀粉酶抑制活性进行评价体外。初步的结构-活性关系研究表明，C4-CHO和C4-CH 2 OH对α-葡萄糖苷酶抑制活性不是必需的。在这三种化合物中，化合物3表现出对α-葡萄糖苷酶的显着抑制活性，IC 50为值为9.17μM。根据Dixon图上的截距确定为9.35μM的K i，抗α-葡萄糖苷酶的更强皂苷3可能是非竞争性抑制模式。同时，计算化合物1-3的亲脂性，作为药理效力的预测。根据预测的log  P值，亲脂性可能与评估的生物学潜能相关。
• A highly efficient TEMPO mediated oxidation of sugar primary alcohols into uronic acids using 1-chloro-1,2-benziodoxol-3(1H)-one at room temperature
  作者：Varsha Tiwari、Vishnu Nayak Badavath、Adesh Kumar Singh、Jeyakumar Kandasamy

  DOI：10.1016/j.tetlet.2018.05.021

  日期：2018.6

  Oxidation of various sugar primary alcohols into corresponding uronic acids was demonstrated using 1-chloro-1,2-benziodoxol-3(1H)-one and TEMPO. The reaction proceeds at room temperature in good to excellent yields. Primary alcohols get oxidized selectively over the secondary alcohols under mild reaction conditions.

  使用1-氯-1,2-苯并恶恶唑3（1H）-one和TEMPO证明了各种糖伯醇被氧化为相应的糖醛酸。反应在室温下以良好至极好的收率进行。在温和的反应条件下，伯醇会比仲醇选择性地被氧化。
• First total synthesis of two new diglycosides, neohancosides A and B, from Cynanchum hancockianum
  作者：Yaeko Konda、Tsuneyuki Toida、Eisuke Kaji、Kazuyoshi Takeda、Yoshihiro Harigaya

  DOI：10.1016/s0008-6215(97)00086-4

  日期：1997.6

  Abstract Neohancosides A (1) and B (2) are monoterpene diglycosides isolated from Cynanchum hancockianum , which is a Chinese folk medicine having antitumor activity. First total synthesis of 1 and 2 , (3 R )-linaloyl and (3 R )-8-hydroxylinaloyl 3- O - β -d-xylopyranosyl-(1 → 6)-β-d-glucopyranosides were achieved stereoselectively using fluoride 12b as a glycosyl donor. The asymmetry of C-3 in 1 and

  摘要新汉果苷A（1）和B（2）是从汉防草中分离出的单萜二糖苷，这是一种具有抗肿瘤活性的中草药。使用氟化物12b立体选择性地完成1和2的第一个全合成，（3 R）-芳基酰基和（3 R）-8-羟基芳基酰基3-O-β-d-吡喃吡喃糖基-（1→6）-β-d-吡喃吡喃糖苷。作为糖基供体。通过分离（3 R），（3 S）-芳酰基和（3 R），（3 S）-8-苯甲酰氧基芳醛基3-O -2,3， 4-三-O-苯甲酰基-β-d-吡喃葡萄糖苷，分别为19和21以及20和22。1和2的绝对构型由合成中间体33和34的酶促降解确定。
• Stereochemistry of intramolecular cyclization of tetra-β-(1→6)-d-glucosamines and related tetrasaccharides: the role of the conformational stereocontrol and the neighboring group participation
  作者：Denis V. Titov、Marina L. Gening、Alexey G. Gerbst、Alexander O. Chizhov、Yury E. Tsvetkov、Nikolay E. Nifantiev

  DOI：10.1016/j.carres.2012.12.005

  日期：2013.11

  glycoclusters with different ligand orientation. The difference in the stereoselectivity of cyclization of glucose and glucosamine precursors was accounted for by more effective anchimeric participation of the O-benzoyl group as compared to N-Phth and N-Troc counterparts that was confirmed by calculations of the stabilization energy and rotational barriers around C2-O/N bond in the corresponding glycosyl

  反应条件，离去基团的性质以及糖基化单糖中C-2处的取代基对线性四-β-（1→6）-d-葡糖胺和某些“混合”环化的立体化学结果的影响已经检查了包含葡萄糖和葡糖胺残基的四糖。甲苯和腈溶剂提高了环化反应的β-立体选择性，但是，在这些溶剂中形成环状产物的总效率低于在二氯甲烷中的效率。使用溴化物或戊烯基糖苷代替硫糖苷作为离去基团不会增加β-立体选择性。用N-Troc取代糖基化单元中的N-邻苯二甲酰基不会影响环化的立体选择性，而四糖 发现含有2-O-苯甲酰基葡萄糖而不是葡糖胺作为糖基供体部分的糖专门提供β-连接的环状产物。利用该发现，已经有效地合成了具有两个葡萄糖和两个葡萄糖胺单元的交替或相邻排列的两个环状四糖。这些循环旨在用于制备具有不同配体取向的二价糖簇。葡萄糖和氨基葡萄糖前体环化的立体选择性差异是由O-苯甲酰基与N-Phth和N-Troc对应物的更有效的邻位参与所引起的，这通过计算稳定能和周围的
• Synthesis of a New Phenol Glycoside, Neohancoside C from Cynanchum hancockianum.
  作者：Yaeko KONDA、Yayoi IWASAKI、Shihomi TAKAHATA、Shiho ARIMA、Tsuneyuki TOIDA、Eisuke KAJI、Kazuyoshi TAKEDA、Yoshihiro HARIGAYA

  DOI：10.1248/cpb.45.626

  日期：——

  Neohancoside C (1) is a new phenol glycoside isolated from Cynanchum hancockianum, which is a Chinese folk medicine having antitumor activity. The synthesis of 1, 2-acetylphenyl β-D-xylopyranosyl-(1→6)-β-D-glucopyranoside, was achieved by phase-transfer-catalyzed glycosidation using glycosyl bromide.

  Neohancoside C (1) 是从徐长卿中分离出来的一种新的酚苷，是一种具有抗肿瘤活性的中药民间药物。 1, 2-乙酰苯基β-D-吡喃木糖基-(1→6)-β-D-吡喃葡萄糖苷的合成是通过使用糖基溴的相转移催化糖苷化来实现的。