6-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-hydroxy-6-hydroxymethyl-5-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-hexanoic acid methyl ester | 156521-67-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 6-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-hydroxy-6-hydroxymethyl-5-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-hexanoic acid methyl ester
• 英文别名: methyl 6-[(2R,3R,4R,5S,6R)-3-acetamido-4-hydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxyhexanoate
• CAS: 156521-67-4
• 化学式: C₂₁H₃₇NO₁₃
• 分子量: 511.524
• InChiKey: SBUCNOGAFJEMRT-FLIWFVJASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.3
• 重原子数：
  35
• 可旋转键数：
  13
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  214
• 氢给体数：
  7
• 氢受体数：
  13

反应信息

• 作为反应物：
  描述：

  6-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-hydroxy-6-hydroxymethyl-5-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-hexanoic acid methyl ester 在 pyrophosphatase 、 pyruvate kinase 、 2-吗啉乙磺酸 、 α-1,3-fucosyltransferase V 、 α-2,3-sialyltransferase 、 CMP-N-acetylneuraminic acid synthetase 、 nucleoside monopyruvate kinase 、 phosphoenolpyruvate trisodium salt 、 胞苷-5’-三磷酸 、 5’-三磷酸腺苷 、 2-巯基乙醇 、 magnesium chloride 、 manganese(ll) chloride 、 alkaline phosphatase 作用下， 以 sodium hydroxide 、 水 为溶剂， 反应 242.0h， 生成 5-(methoxycarbonyl)pentyl (5-acetamido-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosylonic acid)-(2->3)-β-D-galactopyranosyl-(1->4)-[α-L-fucopyranosyl-(1->3)]-2-acetamido-2-deoxy-β-D-glucopyranoside
  参考文献：
  名称：

  Ligand Recognition by E- and P-Selectin:  Chemoenzymatic Synthesis and Inhibitory Activity of Bivalent Sialyl Lewis x Derivatives and Sialyl Lewis x Carboxylic Acids

  摘要：

  Described is the preparation of five sLe(x) dimers and five sLe(x) carboxylic acids by coupling chemoenzymatically synthesized amino-substituted sialyl Lewis x (sLe(x)) derivative 4 to homobifunctional cross-linkers 20-24 of varying chain length. 20-24 were obtained by alkylating low-molecular-weight oligoethylene glycols with tert-butyl bromoacetate and subsequent transformation of the di-tert-butyl esters into disuccinimide esters. The products were assayed for inhibition against binding of a sLe(a)-polymer to immobilized E- and P-selectin. In the E-selectin assay all dimers had lower IC50 values than the sLex monomer. The results show that comparable binding enhancements can be obtained with linkers of completely different length and rigidity. In the P-selectin assay four of the five sLe(x) carboxylic acids displayed significantly improved inhibitory potency. The lowest IC50 value was observed for the compound with the shortest spacer between the sLex moiety and the additional carboxylate, being ca. 20-40 times more potent than unmodified sLex. These findings should be of importance for the design of new multivalent forms of sLe(x) as well as sLe(x) mimetics as high-affinity selectin ligands.

  DOI：

  10.1021/jo980350s
• 作为产物：
  描述：

  methyl 6-[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoate 、 4-硝基苯基-D-吡喃葡糖苷 在 phosphate buffer 、 β-D-galactosidase from Bacillus circulans 作用下， 以 水 、 乙腈 为溶剂， 反应 3.0h， 以57%的产率得到6-[(2R,3R,4R,5S,6R)-3-Acetylamino-4-hydroxy-6-hydroxymethyl-5-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-hexanoic acid methyl ester
  参考文献：
  名称：

  Synthesis of lactosamine derivatives using β-d-galactosidase from Bacillus circulans

  摘要：

  Various lactosamine derivatives that are versatile building blocks for oligosaccharide synthesis were obtained with excellent regioselectivity and moderate to high yields using beta-D-galactosidase from Bacillus circulans as the biocatalyst. (C) 1996 Elsevier Science Ltd

  DOI：

  10.1016/0960-894x(96)00184-9

文献信息

• Microbial Glycosyltransferases for Carbohydrate Synthesis:  α-2,3-Sialyltransferase from <i>Neisseria </i><i>g</i><i>onorrheae</i>
  作者：Masayuki Izumi、Gwo-Jenn Shen、Shirley Wacowich-Sgarbi、Takuji Nakatani、Oliver Plettenburg、Chi-Huey Wong

  DOI：10.1021/ja011382r

  日期：2001.11.1

  exploitation of its substrate specificity and synthetic utility. Several potential acceptor substrates were synthesized in this study, including mono- and oligosaccharides, glycolipids, and glycopeptides and their sulfate derivatives. Some CMP-sialic acid derivatives with modification at the C-5 position were also prepared for evaluation as donor substrates. It was found that the enzyme exhibits a broader

  来自淋病奈瑟菌的 α-2,3-唾液酸转移酶在大肠杆菌中过度生产，以利用其底物特异性和合成效用。本研究合成了几种潜在的受体底物，包括单糖和寡糖、糖脂、糖肽及其硫酸盐衍生物。还制备了一些在 C-5 位进行修饰的 CMP-唾液酸衍生物作为供体底物进行评估。发现与其他唾液酸转移酶相比，该酶表现出更广泛的受体底物特异性，尽管供体特异性非常有限。已证明该酶在代表性唾液酸糖缀合物的制备性合成中的应用。在这项工作和其他人的工作的基础上，
• Depre, Dominique; Dueffels, Arno; Green, Luke G., Chemistry - A European Journal, 1999, vol. 5, # 11, p. 3326 - 3340
  作者：Depre, Dominique、Dueffels, Arno、Green, Luke G.、Lenz, Roman、Ley, Steven V.、Wong, Chi-Huey

  DOI：——

  日期：——
• Ligand Recognition by E- and P-Selectin:  Chemoenzymatic Synthesis and Inhibitory Activity of Bivalent Sialyl Lewis x Derivatives and Sialyl Lewis x Carboxylic Acids
  作者：Valentin Wittmann、Shuichi Takayama、Ke Wei Gong、Gabriele Weitz-Schmidt、Chi-Huey Wong

  DOI：10.1021/jo980350s

  日期：1998.7.1

  Described is the preparation of five sLe(x) dimers and five sLe(x) carboxylic acids by coupling chemoenzymatically synthesized amino-substituted sialyl Lewis x (sLe(x)) derivative 4 to homobifunctional cross-linkers 20-24 of varying chain length. 20-24 were obtained by alkylating low-molecular-weight oligoethylene glycols with tert-butyl bromoacetate and subsequent transformation of the di-tert-butyl esters into disuccinimide esters. The products were assayed for inhibition against binding of a sLe(a)-polymer to immobilized E- and P-selectin. In the E-selectin assay all dimers had lower IC50 values than the sLex monomer. The results show that comparable binding enhancements can be obtained with linkers of completely different length and rigidity. In the P-selectin assay four of the five sLe(x) carboxylic acids displayed significantly improved inhibitory potency. The lowest IC50 value was observed for the compound with the shortest spacer between the sLex moiety and the additional carboxylate, being ca. 20-40 times more potent than unmodified sLex. These findings should be of importance for the design of new multivalent forms of sLe(x) as well as sLe(x) mimetics as high-affinity selectin ligands.
• Synthesis of lactosamine derivatives using β-d-galactosidase from Bacillus circulans
  作者：Shuichi Takayama、Makoto Shimazaki、Lei Qiao、Chi-Huey Wong

  DOI：10.1016/0960-894x(96)00184-9

  日期：1996.5

  Various lactosamine derivatives that are versatile building blocks for oligosaccharide synthesis were obtained with excellent regioselectivity and moderate to high yields using beta-D-galactosidase from Bacillus circulans as the biocatalyst. (C) 1996 Elsevier Science Ltd