methyl 2,3,5-tri-O-benzyl-α-D-xylofuranoside | 79083-40-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2,3,5-tri-O-benzyl-α-D-xylofuranoside
• 英文别名: (2S,3R,4S,5R)-2-methoxy-3,4-bis(phenylmethoxy)-5-(phenylmethoxymethyl)oxolane
• CAS: 79083-40-2
• 化学式: C₂₇H₃₀O₅
• 分子量: 434.532
• InChiKey: DJVKHGGGJZLGII-RAVGUYNFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  32
• 可旋转键数：
  11
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 2,3,5-tri-O-benzyl-α-D-xylofuranoside 在 TMAL 作用下， 以 甲苯 为溶剂， 反应 45.0h， 以40%的产率得到1-O-methyl 3,5-di-O-benzyl α(D)xylo-pentoaldofuranose
  参考文献：
  名称：

  Alkylalanes and methyl furanosides: regioselective O-debenzylation or acetal cleavage

  摘要：

  Perbenzylated methyl pentofuranosides were submitted to the action of three alkylalanes and regioselective debenzylation at O-2 of the four pentoses was observed when choosing the right match between anomeric configuration and aluminium reagent. Diisobutylalane (DIBAL-H) allowed an easy access to reduced open-chain compounds, whereas trimethylalane (TMAL) stereoselectively produced methylated open chain derivatives. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2006.05.002
• 作为产物：
  描述：

  Methyl 3,5-O-Isopropylidene-α-D-xylofuranoside 在 水 、 溶剂黄146 、 silver(l) oxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 36.0h， 生成 methyl 2,3,5-tri-O-benzyl-α-D-xylofuranoside
  参考文献：
  名称：

  由d-木糖合成有效的和特定的对映体葡糖苷酶抑制剂，1,4-dideoxy-1,4-imino-d-arabinitol和1,4-dideoxy-1,4-imin

  摘要：

  1，4-二脱氧-1，4-亚氨基阿拉伯糖醇的两种对映体都是葡糖苷酶的特异性抑制剂。1,4-二脱氧-1,4-亚氨基-D-阿拉伯糖醇的合成涉及将木糖的C2和C5与氮连接在一起，而1,4-二脱氧-1.4-亚氨基-L-阿拉伯糖醇的合成需要C1和C4木糖通过氮连接在一起。1,4-Dideoxy-1,4-imino-D-arabinitol是天然存在的吡咯烷生物碱，存在于Standachii蜘蛛和Angylocalyx Boutiqueanus蜘蛛中。

  DOI：

  10.1016/s0040-4020(01)88174-6

文献信息

• The Development of an Aza-C-Glycoside Library Based on a Tandem Staudinger/Aza-Wittig/Ugi Three-Component Reaction
  作者：Tom Wennekes、Kimberly M. Bonger、Katrin Vogel、Richard J. B. H. N. van den Berg、Anneke Strijland、Wilma E. Donker-Koopman、Johannes M. F. G. Aerts、Gijsbert A. van der Marel、Herman S. Overkleeft

  DOI：10.1002/ejoc.201200923

  日期：2012.11

  We report the tandem Staudinger/aza-Wittig/Ugi three-component reaction mediated synthesis of a 64-member compound library of aza-C-glycosides. The library is composed of four pyrrolidine and three piperidine scaffolds, onto which a number of functional groups is grafted to form seven sublibraries. Variation in the library is achieved by transformation of two pentoses and a hexose into the corresponding

  我们报告串联 Staudinger/aza-Wittig/Ugi 三组分反应介导的 aza-C-糖苷 64 成员化合物库的合成。该文库由四个吡咯烷和三个哌啶支架组成，在其上接枝了许多官能团以形成七个子文库。通过将两种戊糖和一种己糖转化为相应的 4-叠氮戊醛和 5-叠氮己醛衍生物作为 Staudinger/aza-Wittig 过程的前体，可以实现文库的变化。通过在完全保护的 Ugi-3CR 中间体上使用不同的异氰化物以及保护和官能团操作，可以实现进一步的变化。化合物库的初步生物学评估揭示了几种低微摩尔人酸性葡糖神经酰胺酶抑制剂
• The Use of Grignard Reagents in the Synthesis of Carbohydrates. III. The One-way Anomerization of Methyl Glycofuranosides and the Opening of Their Furanose Rings
  作者：Masajiro Kawana、Hiroyoshi Kuzuhara、Sakae Emoto

  DOI：10.1246/bcsj.54.1492

  日期：1981.5

  The anomerization of methyl glycofuranoside derivatives with methylmagnesium iodide or t-butylmagnesium bromide occurred in a one-way manner. For example, methyl 5-O-benzyl-β-D-ribofuranoside (3β) was converted into the corresponding α-anomer (3α) in a 95% yield when a mixture of 3β and t-butylmagnesium bromide in benzene–ether was heated at about 75 °C to remove the ether; the reverse reaction (from

  甲基呋喃糖苷衍生物与甲基碘化镁或叔丁基溴化镁的异构化以单向方式发生。例如，当 3β 和叔丁基溴化镁在苯-醚中的混合物加热时，甲基 5-O-苄基-β-D-呋喃核糖苷 (3β) 以 95% 的产率转化为相应的 α-异头物 (3α)在约 75°C 下除去乙醚；逆反应（从3α到（3β）没有进行。3β与甲基碘化镁反应得到开链产物（33%），除3α（30%）外，还测试了20种异头异构体，并对其作用机理进行了研究。在反应过程中也观察到用格氏试剂裂解苄基或三苯甲基保护基团。
• Study of the Endocyclic versus Exocyclic C–O Bond Cleavage Pathways of α- and β-Methyl Furanosides
  作者：Olivier St-Jean、Michel Prévost、Yvan Guindon

  DOI：10.1021/jo3027438

  日期：2013.4.5

  scaffolds (ribo, lyxo, arabino, and xylo) efficiently afforded acyclic thioacetals with high SN2-like selectivity at the acetal center in the presence of Me2BBr and thiophenol. The stereochemical outcome of these reactions provides important mechanistic insights into the activation pathway of five-membered semicyclic acetals. The thioacetal products should find applications in oligosaccharides synthesis and

  激活和在四个天然糖支架甲基呋喃糖苷（核糖，来苏，阿拉伯糖，和木糖）的开环有效地得到无环硫缩醛具有高S Ñ在我的存在下，乙缩醛中心2等选择性2的BBr和苯硫酚。这些反应的立体化学结果为五元半环缩醛的活化途径提供了重要的机理见解。硫缩醛产品应在寡糖合成中找到应用，并允许进一步开发用于合成新型核苷类似物的无环策略。
• Preparation of thioarabinofuranosyl compounds and use thereof
  申请人：——

  公开号：US20030203872A1

  公开（公告）日：2003-10-30

  Patients suffering from cancer are treated by being administered a compound represented by the following formula: 1 wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of 2 wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.

  患有癌症的患者通过接受以下式子所表示的化合物治疗： 其中每个R分别为H或脂肪族或芳香族酰基；A选自以下组合的群体： 式中X从氢、氟、烷氧基、烷基、卤代烷基、烯基、卤代烯基、炔基、氨基、单烷基氨基、双烷基氨基、氰基和硝基中选取。上述化合物还能抑制哺乳动物细胞中的DNA复制。
• Thioarabinofuranosyl compounds and use thereof
  申请人：Secrist A. John

  公开号：US20050038025A1

  公开（公告）日：2005-02-17

  Patients suffering from cancer are treated by being administered a compound represented by the following formula: wherein each R individually is H or an aliphatic or aromatic acyl group; A is selected from the group consisting of wherein X is selected from the group consisting of hydrogen, fluorine, alkoxy, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, amino, monoalkylamino, dialkylamino, cyano and nitro. The above compounds also inhibit DNA replication in mammalian cells.

  患有癌症的患者被给予以下化学式代表的化合物治疗：其中每个R单独为H或脂肪族或芳香族酰基；A从以下组中选择：其中X从氢，氟，烷氧基，烷基，卤代烷基，烯基，卤代烯基，炔基，氨基，单烷基氨基，双烷基氨基，氰基和硝基中选择。上述化合物还抑制哺乳动物细胞中的DNA复制。