2,3,4,6-四-O-苯甲酰基-alpha-D-吡喃葡萄糖 | 66530-18-5

• 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
• 中文名称: 2,3,4,6-四-O-苯甲酰基-alpha-D-吡喃葡萄糖
• 英文名称: 2,3,4,6-tetra-O-benzoyl-α-D-glucopyranose
• 英文别名: 2,3,4,6-tetra-O-benzoyl-D-glucopyranose；2,3,4,6-Tetra-O-benzoyl-a-D-glucopyranose；[(2R,3R,4S,5R,6S)-3,4,5-tribenzoyloxy-6-hydroxyoxan-2-yl]methyl benzoate
• CAS: 66530-18-5
• 化学式: C₃₄H₂₈O₁₀
• 分子量: 596.59
• InChiKey: FCDYAJBVISGNLC-RZDXDWDHSA-N

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：

  2,3,4,6-四-O-苯甲酰基-alpha-D-吡喃葡萄糖 在 4 A molecular sieve 、 三氟化硼乙醚 、 sodium methylate 、 lithium hydride 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 34.0h， 生成 (2R,3R,4S,5S,6R)-2-[8-[2-amino-6-[(5-iodothiophen-2-yl)methoxy]purin-9-yl]octoxy]-6-(hydroxymethyl)oxane-3,4,5-triol
  参考文献：
  名称：

  Synthesis of ¹³¹I-Labeled Glucose-Conjugated Inhibitors of O⁶-Methylguanine-DNA Methyltransferase (MGMT) and Comparison with Nonconjugated Inhibitors as Potential Tools for in Vivo MGMT Imaging

  摘要：

  O-6-Substituted guanine derivatives are powerful agents used for tumor cell sensitization by inhibition of the DNA repair enzyme O-6-methylguanine-DNA methyltransferase (MGMT). To provide targeted accumulation of MGMT inhibitors in tumor tissue as well as tools for in vivo imaging, we synthesized iodinated C-8-alkyl-linked glucose conjugates of 2-amino-6-(5-iodothenyl)-9H-purine (O-6-(5-iodothenyl) guanine, ITG) and 2-amino-6-(3-iodobenzyloxy)-9H-purine (O-6-(5-iodobenzyl) guanine, IBG). These compounds have MGMT inhibitor constants (IC50 values) of 0.8 and 0.45 mu M for ITGG and IBGG, respectively, as determined in HeLa S3 cells after 2-h incubation with inhibitor. To substantiate that the I-131-(hetero)arylmethylene group at the O-6-position of guanine is transferred to MGMT, both the glucose conjugated inhibitors ITGG and IBGG and the corresponding nonglucose conjugated compounds ITG and IBG were labeled with iodine-131. The radioiodinations of all compounds with [I-131]I- were performed with radiochemical yields of > 70% for the destannylation of the corresponding tri-n-butylstannylated precursors. The binding ability of [I-131]ITGG, [(131)]IBGG, [I-131]ITG, and [I-131]IBG to purified MGMT was tested. All radioactive compounds were substrates for MGMT, as demonstrated using a competitive repair assay. The newly synthesized radioactive inhibitors were utilized to study ex vivo biodistribution in mice, and the tumor-to-blood ratio of tissue uptake of [I-131]IBG and [I-131]IBGG was determined to be 0.24 and 0.76 after 0.5 h, respectively.

  DOI：

  10.1021/jm050588q
• 作为产物：
  描述：

  a-无水葡萄糖酯 在 吡啶 、 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 、 水 、 乙酰氯 作用下， 反应 0.67h， 生成 2,3,4,6-四-O-苯甲酰基-alpha-D-吡喃葡萄糖
  参考文献：
  名称：

  无四氯化碳的烯丙基卤化介导的烯丙基糖苷糖基化

  摘要：

  烯丙基糖苷的烯丙基溴化使用 NBS/AIBN 试剂在 (EtO) 2 CO 和 PhCF 3溶液中进行，不使用 CCl 4作为溶剂。活化的混合卤代烯丙基糖苷导致糖基化，由三氟甲磺酸酯介导，以潜在活性的方式，烯丙基糖苷充当供体和受体。使用不同的三氟甲磺酸酯启动子、非糖基受体和各种烯丙基糖基供体进行系统糖基化研究。在 PhCF 3溶液中开发了一锅烯丙基卤化和随后的糖基化。这种较新的糖基化方法用于获得木糖-吡喃糖苷二糖和三糖。

  DOI：

  10.1039/d1ob01298c

文献信息

• Synthesis of phalluside-1 and Sch II using 1,2-metallate rearrangements
  作者：Fiona J. Black、Philip J. Kocienski

  DOI：10.1039/b920285d

  日期：——

  (4E,8E,10E)-9-Methyl-4,8,10-sphingatrienine, a core component of marine sphingolipids, was synthesised for the first time using a copper(I)-mediated 1,2-metallate rearrangement of a lithiated glycal as a key step. It was converted to phalluside-1, a cerebroside isolated from the ascidian Phallusia fumigate. By an analogous route, (4E,8E)-9-methyl-4,8-sphingadiene was synthesised and converted to Sch II, a cerebroside that induces fruiting body formation in the basidiomycete Schizophyllum commune.

  (4E,8E,10E)-9-甲基-4,8,10-斯潘加三烯是一种海洋鞘脂类的核心成分，首次通过铜(I)催化的1,2-金属重排反应合成了锂化的甘蓝作为关键步骤。将其转化为phalluside-1，这是一种从海鞘Phallusia fumigate中分离出的脑苷脂。通过类似的路径，合成了(4E,8E)-9-甲基-4,8-斯潘加二烯，并将其转化为Sch II，这是一种能诱导担子菌Schizophyllum commune形成子实体的脑苷脂。
• 2′-Deoxy-2′,2′-difluorothymidine analogues for radiolabeling with fluorine-18 and other biomedical applications
  作者：Andreas M. Doepner、Eric O. Aboagye、Anthony G.M. Barrett

  DOI：10.1016/j.tetlet.2014.12.051

  日期：2015.6

  Novel 2′-deoxy-2′,2′-difluorothymidine analogues with potential applications as antiviral, cytotoxic and cancer imaging agents have been synthesized. Introduction of the hydroxymethyl functionality at the 5-position of 2′-deoxy-2′,2′-difluoruridine provided a key intermediate with a suitable synthetic handle for the generation of these nucleoside derivatives.

  已经合成了具有潜在用途的新型2'-脱氧-2'，2'-二氟胸苷类似物作为抗病毒，细胞毒性和癌症显像剂。在2′-脱氧-2′，2′-二氟尿苷的5位上引入羟甲基官能团提供了关键中间体，其具有合适的合成手柄来生成这些核苷衍生物。
• [EN] TIMOSAPONIN COMPOUNDS<br/>[FR] COMPOSÉS TIMOSAPONINE
  申请人：CHE CHIMING

  公开号：WO2013149580A1

  公开（公告）日：2013-10-10

  Provided herein are timosaponin compounds of Frmula I, II, IIΙ, I', II' and IIΙ', pharmaceutical compositions comprising the coumpounds, and processes of preparation thereof. Also provided are uses of said timosaponin compounds for preparing medicament for the treatment of diseases associated with beta-amyloid in hosts or subjects in need thereof.

  提供的是I、II、IIΙ、I'、II'和IIΙ'公式的地高辛化合物，包括所述化合物的药物组合物及其制备方法。还提供了所述地高辛化合物用于制备用于治疗与宿主或需要的人体中的β-淀粉样蛋白相关的疾病的药物。
• Glycosylation with 3,5-Dimethyl-4-(2′-phenylethynylphenyl)phenyl (EPP) Glycosides via a Dearomative Activation Mechanism
  作者：Zhifei Hu、Yu Tang、Biao Yu

  DOI：10.1021/jacs.9b00210

  日期：2019.3.27

  A highly effective and versatile glycosylation method is developed, which uses 3,5-dimethyl-4-(2'-phenylethynylphenyl)phenyl (EPP) glycosides as donors and NIS/TMSOTf as promoter and proceeds via an unprecedented dearomative activation mechanism.

  开发了一种高效且通用的糖基化方法，该方法使用 3,5-二甲基-4-(2'-苯基乙炔基苯基)苯基 (EPP) 糖苷作为供体，NIS/TMSOTf 作为启动子，并通过前所未有的脱芳基活化机制进行。
• Ammonolysis of penta-O-benzoyl-α-d-glucopyranose in an aprotic medium. Characterization of the products isolated, and conformational analysis of eleven N-benzoyl-d-glucofuranosylamine derivatives
  作者：Amelia E. Salinas、Jorge F. Sproviero、Venancio Deulofeu

  DOI：10.1016/0008-6215(87)85006-1

  日期：1987.12

  Abstract The reaction of penta-O-benzoyl-α- d -glucopyranose with chloroform-1,4-dioxane-liquid ammonia gave 1,1-bis(benzamido)-6-O-benzoyl-1-deoxy- d -glucitol (29.0%), three partially benzoylated derivatives of N-benzoyl-α- d -glucofuranosylamine (23.6%), a small proportion of N-benzoyl-di-O-benzoyl-β- d -glucofuranosylamine (0.2%), and four partially benzoylated derivatives of α- d -glucopyranose

  摘要五-O-苯甲酰基-α-d-吡喃葡萄糖与氯仿-1,4-二恶烷-液氨反应生成1,1-双（苯甲酰胺基）-6-O-苯甲酰基-1-脱氧-d-葡萄糖醇（ 29.0％），N-苯甲酰基-α-d-葡萄糖呋喃糖胺的三部分苯甲酰化衍生物（23.6％），N-苯甲酰基-二-O-苯甲酰基-β-d-葡萄糖呋喃糖胺的一小部分（0.2％）和四部分α-d-吡喃葡萄糖的苯甲酰化衍生物（9.9％）。通过化学和光谱学方法建立了迄今未知的产物的结构及其端基构型。N-苯甲酰基-d-葡萄糖呋喃糖胺的两种异构体在溶液中的构象，从氨解反应中分离出的部分苯甲酰化衍生物以及各种化合物的过氧乙酰基衍生物均通过1H-nmr光谱法进行了分析。