2-naphthyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside | 136174-75-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-naphthyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside
• 英文别名: (2R,3S,4R,6S)-6-naphthalen-2-yloxy-3,4-bis(phenylmethoxy)-2-(phenylmethoxymethyl)oxane
• CAS: 136174-75-9
• 化学式: C₃₇H₃₆O₅
• 分子量: 560.69
• InChiKey: XZLHMNSSCJRSEV-BWFYGAPHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.5
• 重原子数：
  42
• 可旋转键数：
  12
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3,4,6-三-氧-苄基-2-脱氧-D-吡喃葡萄糖 在 双(三甲基硅烷基)氨基钾 作用下， 以 四氢呋喃 、 二乙二醇二甲醚 为溶剂， 反应 19.5h， 生成 2-naphthyl 3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranoside
  参考文献：
  名称：

  2-脱氧糖与试剂的β-特异性脱水糖基化反应

  摘要：

  N-磺酰基咪唑可能通过将它们原位转化为糖基磺酸盐而活化2-脱氧糖半缩醛以进行糖基化。通过使磺酸盐的离去基团能力与供体的反应性匹配，可以获得β特异性糖基化反应。该反应证明了原理，即通过选择可以调节活性中间体反应性的启动子，可以将糖基化反应完全置于试剂的控制之下。

  DOI：

  10.1021/ol4018547

文献信息

• A Stereocontrolled Construction of 2-Deoxy-β-glycosidic Linkages<i>via</i>1,2-<i>trans</i>-β-Glycosidation of 2-Deoxy-2-[(<i>p</i>-methoxyphenyl)thio] glycopyranosyl<i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-Tetramethylphosphoroamidates
  作者：Shun-ichi Hashimoto、Yuki Yanagiya、Takeshi Honda、Shiro Ikegami

  DOI：10.1246/cl.1992.1511

  日期：1992.8

  A stereocontrolled synthesis of 2-deoxy-β-glycosides has been achieved by developing a salient 1,2-trans-glycosidation method with 2-deoxy-2-[(p-methoxyphenyl)thio]glycopyranosyl N,N,N′,N′-tetramethylphosphoroamidates as glycosyl donors followed by a reductive removal of the p-methoxyphenylthio group with Raney nickel. The p-methoxyphenylthio group equatorially disposed at C-2 has proven to be an excellent stereodirecting auxiliary.

  通过开发一种显著的1,2-反式糖基化方法，使用2-脱氧-2-[(对甲氧基苯基)硫]吡喃糖基N,N,N',N'-四甲基膦酰胺作为糖基供体，随后用Raney镍还原去除对甲氧基苯硫基团，实现了2-脱氧-β-糖苷的立体控制合成。位于C-2位的对甲氧基苯硫基团在赤道位置上被证明是一个极佳的立体导向辅助基团。
• Reagent-Controlled Stereoselective Glycosylation
  申请人：Trustees of Tufts College

  公开号：US20150038689A1

  公开（公告）日：2015-02-05

  Provided are methods for the efficient stereoselective formation of glycosidic bonds, without recourse to prosthetic or directing groups.

  提供了一种高效立体选择性形成糖苷键的方法，无需使用假体或定向基团。
• Synthetic Approaches to the Angucycline Antibiotics. A Route to C-Glycosidic Benz[a]anthraquinones
  作者：Fleur L. Andrews、David S. Larsen、Lesley Larsen

  DOI：10.1071/ch99124

  日期：——

  3-Deoxy-6′-hydroxy-13-norurdamycinone B (32a) and 3-deoxy-13-norurdamycinone B (32b) have been synthesized in eight steps from 5,8-dimethoxynaphthalen-1-ol (9) both in 28% overall yield. The key step in this approach is the boron trifluoride diethyl etherate promoted β-C-glycosylations of (9) and 1,3,4,6-tetra-O-acetyl-2-deoxy- and 1,3,4-tri-O-acetyl-2-deoxy-D-arabino-hexopyranoses (13) and (19). The solvent, acetonitrile, was essential for the success of these reactions. Acetylation of the C-glycosyl-5,8-dimethoxynaphthalen-1-ols (16) and (20) followed by oxidation with ceric ammonium nitrate gave C-glycosyl-5-acetoxy-1,4-naphthoquinone derivatives (21) and (23) in 63 and 49% overall yields from (9). Selective deacetylation of the C 5 acetoxy groups of (21) and (23) was achieved by treatment with boron trifluoride etherate in dichloromethane to give 3,4,6-tri-O-acetyl- 2-deoxy- and 3,4-di-O-acetyl-2,6-dideoxy-β-D-arabino-hexopyranosyl-5-hydroxy-1,4-naphthoquinones (24) and (25) respectively. The tetra-O-acetyl diborate promoted Diels–Alder reactions of (24) and (25) with (±)-(E)-1-acetoxy-3-(2-methoxyvinyl)cyclohex-2-ene (8) each gave a 1 : 1 mixture of diastereoisomeric cycloadducts which, upon treatment with 1,8-diazabicyclo[5.4.0]undec-7-ene gave (1R*)-1-acetoxy-9-(3,4,6-tri-O-acetyl-2-deoxy-β-D-arabino-hexopyranosyl)- and (1R*)-1-acetoxy-9-(3,4-di-O-acetyl-2,6-dideoxy-β-D-arabino-hexopyranosyl)-8-hydroxy-1,2,3,4-tetrahydrobenz[a]anthracene-7,12-dione (30a) and (30b) respectively. Sequential deacetylation and photochemical oxidation of (30a) and (30b) gave the targets (32a) and (32b) respectively.

  3-脱氧-6′-羟基-13-去甲达姆霉素 B（32a）和 3-脱氧-6′-羟基-13-去甲达玛霉素酮 B（32a）和 3-脱氧-13-去甲达玛霉素酮 B（32b）是由 5,8-二甲氧基萘-1-醇 (9) 经过八个步骤合成的，总收率为 28%。该方法的 的关键步骤是用三氟化硼二乙基醚促进 的β-C-糖基化反应。 1,3,4,6-tetra-O-acetyl-2-deoxy- and 1,3,4-O-三乙酰基-2-脱氧-D-阿拉伯并六吡喃糖 (13) 和 (19)。溶剂乙腈对这些反应的成功至关重要。 溶剂乙腈对这些反应的成功至关重要。乙酰化 C-糖基-5,8-二甲氧基萘-1-醇 (16) 和 (20) 的乙酰化反应，然后用铈氨氧化。 然后用硝酸铈铵氧化，得到 C-糖基-5-乙酰氧基-1,4-萘醌衍生物（21） 和 (23)，总产率分别为 63% 和 49%。选择性脱乙酰化 三氟化硼醚化物处理，实现了对(21)和(23)的 C 5 乙酰氧基的选择性脱乙酰化。 在二氯甲烷中用三氟化硼醚酸盐处理，得到 3,4,6-三-O-乙酰基-2-脱氧基和 3,4,6-三-O-乙酰基-2-脱氧-β-D-阿拉伯并六吡喃糖基-5-羟基-1,4-萘醌 (24) 和 (25)。四-O-乙酰基二硼酸盐 促进了 (24) 和 (25) 与以下物质的 Diels-Alder 反应 (±)-(E)-1-乙酰氧基-3-(2-甲氧基乙烯基)环己-2-烯 (8) 的 Diels-Alder 反应。 (8) 的非对映异构环加成物的 1 : 1 混合物。 用 1,8-二氮杂双环[5.4.0]十一-7-烯处理后，得到 (1R*)-1-acetoxy-9-(3,4,6-tri-O-acetyl-2-deoxy-β-D-arabino-hexopyranosyl)- 和 (1R*)-1-乙酰氧基-9-(3,4-二-O-乙酰基-2,6-二脱氧-β-D-阿拉伯己吡喃糖基)-8-羟基-1,2,3,4-四氢苯并[a]蒽-7,12-二酮 分别为 (30a) 和 (30b)。(30a)和(30b)的顺序脱乙酰化和光化 (30a)和(30b)的顺序脱乙酰化和光化学氧化，分别得到目标物(32a)和(32b)。
• Novel Bicylic Donors for the Synthesis of 2-Deoxy-β-Glycosides
  作者：Richard W. Franck、Cecilia H. Marzabadi

  DOI：10.1021/jo971934h

  日期：1998.4.1

  Novel bicyclic glycosyl donors have been prepared by the cycloaddition reaction of glycals with 3-thiono-2,4-pentanedione 17 followed by methylenation of the resulting ketone. Treatment of the heterocyclic donors with triflic acid in the presence of a variety of alcohol accepters leads to the formation of beta-glycosides in good yields and with excellent stereoselectivities. Desulfurization of the C-2 carbon-sulfur bonds gives the corresponding 2-deoxy-beta-glycosides. This method has been extended to the synthesis of glycosidic linkages found in the aureolic acid antibiotics. Tetra-N-butylammonium triflate proved to be a useful additive in these glycosylation reactions, suggesting an important role for triflate anion in stabilizing intermediates which are formed.
• Studies on the Synthesis of Aureolic Acid Antibiotics: Highly Stereoselective Synthesis of Aryl 2-Deoxy-.beta.-glycosides via the Mitsunobu Reaction and Synthesis of the Olivomycin A-B Disaccharide
  作者：William R. Roush、Xiao-Fa Lin

  DOI：10.1021/ja00113a013

  日期：1995.3

  The Mitsunobu reaction of phenols and 1,2-cis-2-thiophenyl-alpha-D-glycopyranoses or 1,2-cis-2-selenophenyl-alpha-D-glycopyranoses is a very effective method for the highly stereoselective synthesis of aryl 2-deoxy-beta-D-glycosides. The equatorial 2-thiophenyl or 2-selenophenyl- substituents are easily removed by Bu(3)SnH reduction following the glycosidation reaction to provide the aryl 2-deoxy-beta-D-glycosides in good to excellent yield. The aryl beta-D-glycosides are obtained with 6.5:1 selectivity in the least selective case(Table 1) and up to >20:1 selectivity in others. The reaction appears to be S-N(2)-like in character (see 30), in that the beta:alpha reaction stereoselectivity correlates well with the alpha:beta anomeric composition of the pyranose starting material. The equatorial 2-thiophenyl or 2-selenophenyl substituents play an important role by increasing the alpha:beta anomer ratio of the pyranose starting materials. The reactions do not appear to proceed by way of free oxonium ions such as 17, since several reactions in which 17 was deliberately generated (e.g., TMS-OTf promoted reactions of glycosyl acetate 14, BF3 . Et(2)O catalyzed reactions of imidate 15) gave at best 1:1 mixtures of alpha- and beta-glycosides, and in several cases gave alpha-glycosides with >10:1 selectivity. These data also rule out the involvement of episulfonium ion 18 as a kinetically significant intermediate in reactions that proceed by way of oxonium ion 17. A short and highly effective synthesis of reducing disaccharide 53 from D-fucal was developed. This functionalized disaccharide readily undergoes Mitsunobu glycosidation with 2-naphthol, providing the model naphthyl A-B disaccharide 5 with 11:1 beta,alpha:alpha,alpha selectivity. Finally, olivin precursor 63 has also been glycosylated with 53, providing the advanced synthetic intermediate 6 with excellent diastereoselectivity.