2-(trimethylsilyl)ethyl 6-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside | 174314-11-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(trimethylsilyl)ethyl 6-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside
• 英文别名: 2-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(phenylmethoxymethyl)-2-(2-trimethylsilylethoxy)oxan-3-yl]isoindole-1,3-dione
• CAS: 174314-11-5
• 化学式: C₂₆H₃₃NO₇Si
• 分子量: 499.636
• InChiKey: UZXKLIJUCZJYKI-QSZPGENFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.67
• 重原子数：
  35
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  106
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2-(trimethylsilyl)ethyl 6-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside 在 palladium on activated charcoal 氢气 、 氰化汞 作用下， 以 吡啶 、 甲醇 、 硝基甲烷 、 溶剂黄146 、 甲苯 为溶剂， 25.0 ℃ 、206.84 kPa 条件下， 反应 28.0h， 生成 Acetic acid (2R,3R,4R,5S,6R)-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-hydroxymethyl-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-2-(2-trimethylsilanyl-ethoxy)-tetrahydro-pyran-4-yl ester
  参考文献：
  名称：

  Synthesis and NMR assignment of two repeating units (decasaccharide) of the type III group B Streptococcus capsular polysaccharide and its13 C-labeled and N-propionyl substituted sialic acid analogues

  摘要：

  DOI：

  10.1016/s0008-6215(96)00236-4
• 作为产物：
  描述：

  2-(trimethylsilyl)ethyl 4,6-O-benzylidene-2-deoxy-2-phthalimido-β-D-glucopyranoside 在 3 A molecular sieve 、 sodium cyanoborohydride 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 2.0h， 以78%的产率得到2-(trimethylsilyl)ethyl 6-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis and NMR assignment of two repeating units (decasaccharide) of the type III group B Streptococcus capsular polysaccharide and its13 C-labeled and N-propionyl substituted sialic acid analogues

  摘要：

  DOI：

  10.1016/s0008-6215(96)00236-4

文献信息

• Iodine Monochloride/Silver Trifluoromethanesulfonate (ICl/AgOTf) as a Convenient Promoter System for <i>O</i>-Glycoside Synthesis
  作者：Teddy Ercegovic、Andreas Meijer、Göran Magnusson、Ulf Ellervik

  DOI：10.1021/ol015547c

  日期：2001.3.1

  The novel promoter system iodine monochloride/silver trifluoromethanesulfonate (ICl/AgOTf) was evaluated with various thioglycoside donors and saccharide acceptors, and O-glycosides were obtained in 46-82% yield. Several practical advantages of the ICl/AgOTf system over known promoter systems were observed, such as convenient handling of the reagents and absence of byproducts related to N-succinimide

  用各种硫代糖苷供体和糖受体评估了新型的启动子系统一氯化碘/三氟甲磺酸银（IC1 / AgOTf），并以46-82％的产率获得了O-糖苷。观察到了ICl / AgOTf系统相对于已知启动子系统的一些实际优点，例如方便的试剂处理和不存在与N-琥珀酰亚胺有关的副产物。
• Synthesis and conformational studies of the tyvelose capped, Lewis-x like tetrasaccharide epitope of Trichinella spiralis
  作者：Jian Zhang、Albin Otter、David R. Bundle

  DOI：10.1016/s0968-0896(96)00182-4

  日期：1996.11

  halide-ion glycosylation methods. The unique 3,6-dideoxy-beta-D-arabinohexopyranosyl residue that caps the structure was introduced to selectively protected 2-(trimethylsilyl)ethyl and methyl trisaccharide glycosides by utilizing an insoluble silver zeolite catalyst and a glycosyl halide. In separate reactions not only were the principal targets obtained but also the corresponding alpha-linked tetrasaccharides

  化学合成和高分辨率NMR研究报道了四糖表位和旋毛虫细胞表面聚糖末端元素的结构。使用硫代糖苷和卤化物离子糖基化方法，由单糖合成子合成了Lewis Gal-c型β-糖苷酸替代β-Gal糖的Lewis-x型三糖的2-（三甲基甲硅烷基）乙基和甲基糖苷。通过利用不溶性银沸石催化剂和糖基卤化物，引入了独特的3,6-二脱氧-β-D-阿拉伯环己基吡喃糖基残基，以选择性保护2-（三甲基甲硅烷基）乙基和甲基三糖苷。在单独的反应中，不仅获得了主要靶标，而且获得了相应的α-连接的四糖。甲基四糖苷的NMR光谱比较表明，在α-连接的酪糖结构的位点处，特定的GalNAc共振（C-1，C-2，C-3）具有异常宽的13C（8-21 Hz）和1H线。代表天然寄生虫表位的β-连接的四糖苷仅表现出较窄的线宽（3 Hz，13C）。由于NOE得出的对α-连接的酪氨酸结构的距离限制与不寻常的糖苷构象异构体的存在不一致，因此，有限数目的
• Glycosylation with N-Troc-protected glycosyl donors
  作者：Ulf Ellervik、Göran Magnusson

  DOI：10.1016/0008-6215(95)00318-5

  日期：1996.1

  N-Troc-protected (Troc = 2,2,2-trichloroethoxycarbonyl) glucosamine and galactosamine glycosyl donors (1-O-acetyl sugar, bromo sugar, and thioglycoside) were compared with the corresponding N-Phth-protected derivatives in glycosylations of 2-(trimethylsilyl)ethanol, 2-bromoethanol, methyl 3-mercaptopropionate, N-Fmoc-protected serine, and 2-(trimethylsilyl)ethyl 6-O-benzyl-2-deoxy-2-phthalimido-be

  将N-Troc保护的（Troc = 2,2,2-三氯乙氧基羰基）葡萄糖胺和半乳糖胺糖基供体（1-O-乙酰基糖，溴糖和硫代糖苷）与相应的N-Phth保护的衍生物的糖基化为2 -（三甲基甲硅烷基）乙醇，2-溴乙醇，3-巯基丙酸甲酯，N-Fmoc保护的丝氨酸和2-（三甲基甲硅烷基）乙基6-O-苄基-2-脱氧-2-邻苯二甲酰亚胺-β-D-吡喃葡萄糖苷。N-Troc保护的供体比N-Phth保护的供体以更高的收率得到纯的β-糖苷。N-Troc保护基可通过用锌还原来去除，从而允许在同时包含N-Troc和N-Phth基团的寡糖中进行选择性N-脱保护。
• Synthesis, Inhibitory Effects on Nitric Oxide and Structure-Activity Relationships of a Glycosphingolipid from the Marine Sponge Aplysinella rhax and Its Analogues
  作者：Yuzo Fujita、Naohiro Ohshima、Ai Hasegawa、Frank Schweizer、Tadahiro Takeda、Fumiyuki Kiuchi、Noriyasu Hada

  DOI：10.3390/molecules16010637

  日期：——

  The novel glycosphingolipid, b-D-GalNAcp(1®4)[a-D-Fucp(1®3)]-b-D-GlcNAcp(1®)Cer (A), isolated from the marine sponge Aplysinella rhax has a unique structure, with D-fucose and N-acetyl-D-galactosamine moieties attached to a reducing-end N-acetyl-D-glucosamine through an a1®3 and b1®4 linkage, respectively. We synthesized glycolipid 1 and some non-natural di- and trisaccharide analogues 2-6 containing a D-fucose residue. Among these compounds, the natural type showed the most potent nitric oxide (NO) production inhibitory activity against LPS-induced J774.1 cells. Our results indicate that both the presence of a D-Fuca1-3GlcNAc-linkage and the ceramide aglycon portion are crucial for optimal NO inhibition.

  从海洋海绵 Aplysinella rhax 中分离出的新型糖磷脂--b-D-GalNAcp(1®4)[a-D-Fucp(1®3)]-b-D-GlcNAcp(1®)Cer (A) 具有独特的结构，D-岩藻糖和 N-乙酰基-D-半乳糖胺分别通过 a1®3 和 b1®4 连接到还原端的 N-乙酰基-D-葡萄糖胺上。我们合成了糖脂 1 和一些含有 D-岩藻糖残基的非天然二糖和三糖类似物 2-6。在这些化合物中，天然型糖脂对 LPS 诱导的 J774.1 细胞一氧化氮（NO）产生的抑制活性最强。我们的研究结果表明，D-Fuca1-3GlcNAc 连接和神经酰胺苷元部分的存在对于达到最佳的一氧化氮抑制效果至关重要。
• A High Yielding Chemical Synthesis of Sialyl Lewis x Tetrasaccharide and Lewis x Trisaccharide; Examples of Regio- and Stereodifferentiated Glycosylations
  作者：Ulf Ellervik、Göran Magnusson

  DOI：10.1021/jo981203x

  日期：1998.12.1

  Virtually complete regioselective galactosylation of the diol acceptor p-methoxyphenyl 6-O-benzyl-2-deoxy-2-tetrachlorophthalimido-beta-n-glucopyranoside (8) with the donor phenyl 2,3,4-tri-O-acetyl-6-O-benzyl-1-thio-beta-D-galactopyranoside (11) gave the lactosamine derivative 14, which was fucosylated with the donor 15 to give the Le(x) trisaccharide glycoside 2 after deprotection. Regioselective sialylation of the partially protected Le(x) trisaccharide triol 24 with the sialyl donor 25 gave, after deprotection, the SLe(x) tetrasaccharide glycoside 1. The overall yields of 2 and 1 from the monosaccharide starting materials 8, 11, 15, and 25 were 56% and 29%, respectively. In contrast to the virtually complete regio- and stereoselective galactosylation of 8, fucosylation with the benzyl-protected donor 15 gave the corresponding 1-->3- and 1-->4-linked disaccharides in a ratio of 3.6:1 (highly stereo- but not regioselective glycosylation), whereas fucosylation with acetyl-protected donor 18 gave a 2.2:1 beta/alpha-mixture of 4-O-linked disaccharides (highly regio- but not stereoselective glycosylation).