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methyl 2,3,4-tri-O-benzyl-6-O-(2,3,6-tri-O-benzyl-4-O-picoloyl-α-D-glucopyranosyl)-α-D-glucopyranoside | 1415590-75-8

中文名称
——
中文别名
——
英文名称
methyl 2,3,4-tri-O-benzyl-6-O-(2,3,6-tri-O-benzyl-4-O-picoloyl-α-D-glucopyranosyl)-α-D-glucopyranoside
英文别名
[(2R,3R,4S,5R,6S)-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-4,5-bis(phenylmethoxy)-2-(phenylmethoxymethyl)oxan-3-yl] pyridine-2-carboxylate
methyl 2,3,4-tri-O-benzyl-6-O-(2,3,6-tri-O-benzyl-4-O-picoloyl-α-D-glucopyranosyl)-α-D-glucopyranoside化学式
CAS
1415590-75-8
化学式
C61H63NO12
mdl
——
分子量
1002.17
InChiKey
JWQKSKWDGXPHNJ-NMYYSSHRSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    8.9
  • 重原子数:
    74
  • 可旋转键数:
    26
  • 环数:
    9.0
  • sp3杂化的碳原子比例:
    0.31
  • 拓扑面积:
    132
  • 氢给体数:
    0
  • 氢受体数:
    13

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Synthesis of β‐Glucosides with 3‐ <i>O</i> ‐Picoloyl‐Protected Glycosyl Donors in the Presence of Excess Triflic Acid: A Mechanistic Study
    作者:Michael P. Mannino、Alexei V. Demchenko
    DOI:10.1002/chem.201905277
    日期:2020.3.2
    Our previous study showed that picoloylated donors are capable of providing excellent facial stereoselectivity through the H-bond-mediated aglycone delivery (HAD) pathway. Presented herein is a detailed mechanistic study of stereoselective glycosylation with 3-O-picoloylated glucosyl donors. While reactions of glycosyl donors equipped with the 3-O-benzoyl group are typically non-stereoselective because
    我们之前的研究表明,通过氢键介导的糖苷配基传递(HAD)途径,甲基化的供体能够提供出色的面部立体选择性。本文提供了用3-O-吡啶甲基化的葡糖基供体的立体选择性糖基化的详细机理研究。尽管带有3-O-苯甲酰基的糖基供体的反应通常是非立体选择性的,因为这些反应是通过氧杂碳鎓中间体进行的,而3-O-吡啶甲基化的供体能够通过HAD提供增强的,但有些松弛的β-立体选择性。途径。为了改进该反应,我们注意到在NIS和化学计量的TfOH存在下,糖基化具有高度的β-立体选择性。HAD途径极不可能发生,因为在这些反应条件下,皮甲酰氮被质子化。通过低温NMR研究了质子化和糖基化,并观察到了三氟甲磺酸糖基的中间体。本文致力于扩大该反应在各种底物和靶标中的应用范围。
  • Synthesis of β‐Glucosides with 3‐ <i>O</i> ‐Picoloyl‐Protected Glycosyl Donors in the Presence of Excess Triflic Acid: Defining the Scope
    作者:Michael P. Mannino、Alexei V. Demchenko
    DOI:10.1002/chem.201905278
    日期:2020.3.2
    Excellent β-stereoselectivity for the glycosylation with glucosyl donors equipped with the 3-O-picoloyl (Pico) group, without the use of participating group, was achieved in the presence of NIS/excess TfOH promoter system. A complete investigation of the scope of this reaction was performed, revealing all important attributes of successful glycosylation. While altering the halogen source was tolerated
    在存在NIS /过量TfOH启动子系统的情况下,在不使用参与基团的情况下,对于配备有3-O-picoloyl(Pico)基团的葡萄糖基供体的糖基化具有出色的β-立体选择性。对该反应范围进行了全面研究,揭示了成功糖基化的所有重要属性。在容忍改变卤素源的同时,三氟甲磺酸根阴离子的取代导致立体选择性的完全丧失。经确定,Pico基团的质子化在该反应中至关重要。还发现质子化吡啶环的稳定性或程度是获得高立体选择性的另一个重要关键因素。发现受体的亲核性与所获得的立体选择性成正比,暗示了类似于SN 2的机制。
  • Effect of Remote Picolinyl and Picoloyl Substituents on the Stereoselectivity of Chemical Glycosylation
    作者:Jagodige P. Yasomanee、Alexei V. Demchenko
    DOI:10.1021/ja307355n
    日期:2012.12.12
    O-Picolinyl and O-picoloyl groups at remote positions (C-3, C-4, and C-6) can mediate glycosylation reactions by providing high or even complete facial selectivity for the attack of the glycosyl acceptor. The set of data presented herein offers a strong evidence of the intermolecular H-bond tethering between the glycosyl donor and glycosyl acceptor counterparts while providing a practical new methodology for the synthesis of either 1,2-cis or 1,2-trans linkages. Challenging glycosidic linkages including alpha-gluco, beta-manno, and beta-rhamno have seen obtained with high or complete stereocontrol.
  • Hydrogen-Bond-Mediated Aglycone Delivery (HAD): A Highly Stereoselective Synthesis of 1,2-<i>cis</i>α-<scp>D</scp>-Glucosides from Common Glycosyl Donors in the Presence of Bromine
    作者:Jagodige P. Yasomanee、Alexei V. Demchenko
    DOI:10.1002/chem.201406589
    日期:2015.4.20
    H‐bond mediated aglycone delivery (HAD) method recently introduced by our laboratory. At first it was noticed that high α‐stereoselectivity is only obtained with S‐ethyl glycosyl donors and only in the presence of dimethyl(methylthio)sulfonium trifluoromethanesulfonate (DMTST), in high dilution, and low temperature. Combining the mechanistic studies of the HAD reaction and bromine‐promoted glycosylations
    本文描述的是我们实验室最近引入的由吡啶甲酰基保护基辅助的H键介导的糖苷配基递送(HAD)方法的扩展。最初,人们注意到只有在高稀释度和低温下,仅在S-乙基糖基供体和三氟甲磺酸二甲基(甲硫基)ulf存在下,才能获得高α-立体选择性。将HAD反应的机理研究与溴促进的糖基化结合起来,可以设计出一种非常有效的方法,该方法可以对几乎所有常见的离去基团(S-苯基,S-甲苯基,S / O-亚氨酸酯)进行高度立体选择性的α-糖基化。在常规浓度和环境温度下。
  • Cooperatively Catalyzed Activation of Thioglycosides That Bypasses Intermediacy of Glycosyl Halides
    作者:Ashley Dent、Samira Escopy、Alexei V. Demchenko
    DOI:10.1002/chem.202300873
    日期:2023.8
    A new method for the activation of thioglycosides without a glycosyl halide intermediate by using a silver salt coupled with an acid additive and molecular iodine is reported. Application of the H-bond-mediated aglycone delivery (HAD) method lead to an enhanced stereocontrol.
    报道了一种无需糖基卤化物中间体、使用银盐与酸添加剂和分子碘偶联来活化硫代糖苷的新方法。氢键介导的糖苷配基递送(HAD)方法的应用增强了立体控制。
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