3-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-1-propanol | 141042-24-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-1-propanol
• 英文别名: 3-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)propanol；3-[(2R,3R,4R,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]propan-1-ol
• CAS: 141042-24-2
• 化学式: C₃₇H₄₂O₆
• 分子量: 582.737
• InChiKey: UKFASVWVOOPNJT-LQHPVFTQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  43
• 可旋转键数：
  16
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  66.4
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-1-propanol 在 甲酸 、 ammonium cerium(IV) nitrate 、 六氯丙酮 、 四丁基氟化铵 、 二甲基亚砜 、 三乙胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 乙腈 为溶剂， 反应 17.75h， 生成 methyl (3S)-3-(phenylmethoxycarbonylamino)-5-[(2R,3R,4R,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]pentanoate
  参考文献：
  名称：

  一类新型糖肽杂交体的设计和合成：通过立体选择性“乙酸酯”曼尼希反应作为关键战略要素的 C-连接糖基 β-氨基酸

  摘要：

  一种新型的糖-氨基酸杂交体，它由一个糖单元（葡萄糖、半乳糖或吡喃甘露糖）通过 C-糖苷键连接到 α-未取代的 β-氨基酸单元的 β-位，被表达。据推测，这些新化合物或由其衍生的寡聚肽可能具有 β-氨基酸寡聚体的结构特征以及 C-糖苷对水解的化学和酶抗性。该合成策略基于手性乙酸烯醇酯等价物与衍生自相应糖-C-糖苷醛的α-酰胺砜之间的新曼尼希型反应。虽然糖-C-糖苷醛伴侣是通过对已知糖前体的成熟转化制备的，以(1R)-endo-2-乙酰异冰片醇3衍生的烯醇锂为关键元素。这种曼尼希方法进行了基本上完美的非对映控制，导致新的 β-氨基羰基加合物以良好的收率。此外，通过用硝酸铈铵 (CAN) 进行氧化处理，可以顺利进行樟脑助剂的裂解。互补地，β-氨基羰基曼尼希加合物与α-或β-氨基酸残基的直接肽型偶联和随后的CAN促进辅助分离产生带有含糖脂肪族侧链的二肽片段，并且是一个过程可以迭代。还提供了基于实验

  DOI：

  10.1021/ja026250s
• 作为产物：
  描述：

  C₄₅H₅₅BO₅ 在 双氧水 、 sodium hydroxide 作用下， 以 乙醇 为溶剂， 生成 3-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-1-propanol
  参考文献：
  名称：

  Domino Heck/Lactonization-Catalyzed Synthesis of 3-C-Linked Mannopyranosyl Coumarins

  摘要：

  Selective syntheses of methyl alpha- (8) and beta-C-mannopyranosyl acrylates (9) were obtained from alpha-C-allyl mannopyranoside (3) by ozonolysis to 4 followed by alpha-methylenation to provide intermediate aldehydes 5 and 6. The beta-anomer 6 was obtained by in situ anomeric epimerization. The acrylates and the homologous alpha-anomer 16, obtained by oxidative hydroboration, oxidation, and alpha-methylenation, were converted into 3-C-linked mannopyranosyl coumarins 11, 12,and 19 in good yields under one-pot Heck/lactonization conditions.

  DOI：

  10.1021/jo901855p

文献信息

• Convergent preparation of 1,6-linked C-disaccharides via olefin metathesis
  作者：Maarten H.D. Postema、Daniel Calimente

  DOI：10.1016/s0040-4039(99)00815-1

  日期：1999.6

  The DCC mediated coupling reaction of 3,4,6-tri-O-benzyl-1,2-dideoxy-d-arabino-hex-1-enitol (5a) with a variety of sugar based carboxylic acids 6a-d gave esters 7a-d in good yield. Methylenation of the formed esters led to the acyclic enol ethers 8a-d and exposure to the Schrock molybdenum catalyst 1 in warm toluene, in the box, gave the target C-disaccharide glycals 9a-d in good yield. The 1,6-linked

  3,4,6-三-O-苄基-1,2-二脱氧-d-阿拉伯糖基-己-1-烯醇（5a）与多种糖基羧酸6a-d的DCC介导的偶联反应得到酯7a -d的产量高。形成的酯的亚甲基化导致无环烯醇醚8a-d，并在盒子中在温暖的甲苯中暴露于Schrock钼催化剂1中，以良好的产率得到目标C-二糖二醇9a-d。将1，6-连接的基于葡萄糖的C-二糖聚糖9a转化为2-脱氧-β-葡萄糖衍生物10a以及相应的葡萄糖β-葡萄糖-C-二糖13。
• 2‐Phenylquinoline–Sugar Hybrids as Photoswitchable α‐Glucosidase Inhibitors
  作者：Takashi Kitamura、Mai Okuyama、Daisuke Takahashi、Kazunobu Toshima

  DOI：10.1002/asia.201900203

  日期：2019.5.2

  Purpose‐designed 2‐phenylquinoline (PQ)‐sugar hybrids 1 and 2 were synthesized and evaluated for their photodegradation activities against an α‐glucosidase target. The results indicated that PQ‐mannose hybrid 2 selectively and effectively photodegraded α‐glucosidase and significantly inhibited its enzymatic activity upon irradiation with long‐wavelength UV light in the absence of any additives under

  合成了专门设计的2-苯基喹啉（PQ）-糖杂种1和2，并评估了它们对α-葡萄糖苷酶靶标的光降解活性。结果表明，在中性和水性条件下，在没有任何添加剂的情况下，用长波长紫外线照射后，PQ-甘露糖杂种2可以选择性且有效地光降解α-葡萄糖苷酶，并显着抑制其酶活性。此外，即使在复杂的细胞裂解物中，2也只有通过光照射才能选择性而有效地抑制α-葡萄糖苷酶的活性。
• GLUCOSE-RESPONSIVE INSULIN CONJUGATES
  申请人：Merck Sharp & Dohme Corp.

  公开号：US20150105317A1

  公开（公告）日：2015-04-16

  Insulin conjugates comprising an insulin molecule covalently attached to at least one bi-dentate linker having two arms, each arm independently attached to a ligand comprising a saccharide and wherein the saccharide for at least one ligand of the linker is fucose are disclosed. The insulin conjugates display a pharmacokinetic (PK) and/or pharmacodynamic (PD) profile that is responsive to the systemic concentrations of a saccharide such as glucose or alpha-methylmannose even when administered to a subject in need thereof in the absence of an exogenous multivalent saccharide-binding molecule such as Con A.

  本发明涉及胰岛素共轭物，包括将胰岛素分子共价连接至至少一个双齿配体的连接物中，每个配体独立连接到包含一种含糖和其中至少一个连接物的配体的糖类，其中连接物的至少一个配体的糖类为岩藻糖。这些胰岛素共轭物展示出对系统浓度的糖类（如葡萄糖或α-甲基甘露糖）具有响应的药代动力学（PK）和/或药效动力学（PD）特性，即使在给予需要的受试者时，也不需要外源多价糖类结合分子（如Con A）。
• [EN] GLUCOSE-RESPONSIVE INSULIN CONJUGATES<br/>[FR] CONJUGUÉS D'INSULINE SENSIBLES AU GLUCOSE
  申请人：MERCK SHARP & DOHME

  公开号：WO2016164288A1

  公开（公告）日：2016-10-13

  Insulin conjugates comprising an insulin analog molecule covalently attached to at least one bi-dentate linker having two arms, each arm independently attached to a ligand comprising a saccharide and wherein the saccharide for at least one ligand of the linker is fucose are disclosed. The insulin conjugates display a pharmacokinetic (PK) and/or pharmacodynamic (PD) profile that is responsive to the systemic concentrations of a saccharide such as glucose or alpha-methylmannose even when administered to a subject in need thereof in the absence of an exogenous multivalent saccharide-binding molecule such as Con A.

  包含胰岛素类似物分子的胰岛素共轭物，与至少一个双齿配体连接物共价连接，每个配体独立连接到一个含有糖类的配体，并且连接物中至少一个配体的糖类是富马醇。这些胰岛素共轭物显示出对糖类（如葡萄糖或α-甲基甘露糖）的体内浓度响应的药代动力学（PK）和/或药效动力学（PD）特性，即使在向需要者施用时，也无需外源多价糖类结合分子（如Con A）。
• Differential Carbohydrate Recognition of Two GlcNAc-6-sulfotransferases with Possible Roles in L-Selectin Ligand Biosynthesis
  作者：Brian N. Cook、Sunil Bhakta、Teresa Biegel、Kendra G. Bowman、Joshua I. Armstrong、Stefan Hemmerich、Carolyn R. Bertozzi

  DOI：10.1021/ja001224k

  日期：2000.9.1

  Two human GlcNAc-6-sulfotransferases, CHST2 and HEC-GlcNAc6ST, have been recently identified as possible contributors to the inflammatory response by virtue of their participation in L-selectin ligand biosynthesis. Selective inhibitors would facilitate their functional elucidation and might provide leads for antiinflammatory therapy. Here we investigate the critical elements of a disaccharide substrate that are required for recognition by CHST2 and HEC-GlcNAc6ST. A panel of disaccharide analogues, bearing modifications to the pyranose rings and aglycon substituents, were synthesized and screened for substrate activity with each enzyme. Both GlcNAc-6-sulfotransferases required the 2-N-acetamido and 4-hydroxyl groups of a terminal GlcNAc residue for conversion to product. Both enzymes tolerated modifications to the reducing terminal pyranose. Key differences in recognition of an amide group in the aglycon substituent were observed, providing the basis for future glycomimetic inhibitor design.