methyl (2S,4S,5R,6R)-4-acetyloxy-5-(diacetylamino)-2-[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-2-(2,2-dimethylpropanoyloxymethyl)-6-[(2R,3S,4R,5R,6S)-5-(1,3-dioxoisoindol-2-yl)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-2-(naphthalen-2-ylmethoxymethyl)-6-phenylsulfanyloxan-3-yl]oxyoxan-4-yl]oxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate | 329783-74-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (2S,4S,5R,6R)-4-acetyloxy-5-(diacetylamino)-2-[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-2-(2,2-dimethylpropanoyloxymethyl)-6-[(2R,3S,4R,5R,6S)-5-(1,3-dioxoisoindol-2-yl)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-2-(naphthalen-2-ylmethoxymethyl)-6-phenylsulfanyloxan-3-yl]oxyoxan-4-yl]oxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
• CAS: 329783-74-6
• 化学式: C₉₅H₁₀₆N₂O₃₁S
• 分子量: 1803.95
• InChiKey: MZVBXMDTTUBZDC-QXCNUECPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.9
• 重原子数：
  129
• 可旋转键数：
  44
• 环数：
  12.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  412
• 氢给体数：
  0
• 氢受体数：
  32

反应信息

• 作为反应物：
  描述：

  methyl (2S,4S,5R,6R)-2-[(2R,3R,4S,5S,6R)-2-[(2R,3R,4R,5R,6S)-5-acetamido-3-hydroxy-2-(hydroxymethyl)-6-methoxyoxan-4-yl]oxy-3,5-diacetyloxy-6-(2,2-dimethylpropanoyloxymethyl)oxan-4-yl]oxy-4-acetyloxy-5-(diacetylamino)-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate 、 methyl (2S,4S,5R,6R)-4-acetyloxy-5-(diacetylamino)-2-[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-2-(2,2-dimethylpropanoyloxymethyl)-6-[(2R,3S,4R,5R,6S)-5-(1,3-dioxoisoindol-2-yl)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-2-(naphthalen-2-ylmethoxymethyl)-6-phenylsulfanyloxan-3-yl]oxyoxan-4-yl]oxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate 在 N-碘代丁二酰亚胺 、 4 A molecular sieve 、 三氟甲磺酸 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 以67%的产率得到methyl (2S,4S,5R,6R)-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-6-[[(2R,3R,4R,5R,6S)-5-acetamido-4-[(2R,3R,4S,5S,6R)-3,5-diacetyloxy-4-[(2S,4S,5R,6R)-4-acetyloxy-5-(diacetylamino)-2-methoxycarbonyl-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxan-2-yl]oxy-6-(2,2-dimethylpropanoyloxymethyl)oxan-2-yl]oxy-3-hydroxy-6-methoxyoxan-2-yl]methoxy]-5-(1,3-dioxoisoindol-2-yl)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-2-(naphthalen-2-ylmethoxymethyl)oxan-3-yl]oxy-3,5-diacetyloxy-6-(2,2-dimethylpropanoyloxymethyl)oxan-4-yl]oxy-4-acetyloxy-5-(diacetylamino)-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
  参考文献：
  名称：

  The 2-Naphthylmethyl (NAP) Group in Carbohydrate Synthesis: First Total Synthesis of the GlyCAM-1 Oligosaccharide Structures

  摘要：

  Total syntheses of the GlyCAM-1 (glycosylation-dependent cell adhesion molecule-1) oligosaccharide structures: [alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 4)-[alpha-Fuc-(1 --> 3)]-beta-(6-O-SO3Na)-GlcNAc-(1 --> 6)]-[alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 3)]-alpha-GalNAc-OMe (1) and [alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 4)-[alpha-Fuc-(1 --> 3)]-beta-GlcNAc-(1 --> 6)]-[alpha-NeuAc-(2 3)-beta-Gal-(1 --> 3)]-alpha-GalNAc-OMe (2) through a novel sialyl LewisX tetrasaccharide donor are described. Employing sequential glycosylation strategy, the starting trisaccharide was regio- and stereoselectively constructed through coupling of a disaccharide imidate with the monosaccharide acceptor phenyl-6-O-naphthylmethyl-2-deoxy-2-phthalimido-1-thio-beta-D-glucopyranoside with TMSOTf as a catalyst without affecting the SPh group. The novel sialyl Lewisx tetrasaccharide donor 3 was then obtained by alpha-L-fucosylation of trisaccharide acceptor with the 2,3,4-tri-O-benzyl-1-thio-beta-L-fucoside donor. The structure of the novel sialyl Lewisx tetrasaccharide was established by a combination of 2D DQF-COSY and 2D ROESY experiments. Target oligosaccharides 1 and 2 were eventually constructed through heptasaccharide which was obtained by regioselective assembly of advanced sialyl Lewisx tetrasaccharide donor 3 and a sialylated trisaccharide acceptor in a predictable and controlled manner. Finally, target heptasaccharides 1 and 2 were fully characterized by 2D DQF-COSY, 2D ROESY, HSQC, HMBC experiments and FAB mass spectroscopy.

  DOI：

  10.1002/1521-3765(20010119)7:2<356::aid-chem356>3.0.co;2-e
• 作为产物：
  描述：

  甲基-2,3,4-三-O-苄基-1-硫代-β-L-岩藻糖苷 、 C₇₀H₈₀N₂O₂₈S 在 4 A molecular sieve 、 四丁基溴化铵 、 copper(ll) bromide 作用下， 以 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 65.0h， 以92%的产率得到methyl (2S,4S,5R,6R)-4-acetyloxy-5-(diacetylamino)-2-[(2R,3S,4S,5R,6S)-3,5-diacetyloxy-2-(2,2-dimethylpropanoyloxymethyl)-6-[(2R,3S,4R,5R,6S)-5-(1,3-dioxoisoindol-2-yl)-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-2-(naphthalen-2-ylmethoxymethyl)-6-phenylsulfanyloxan-3-yl]oxyoxan-4-yl]oxy-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate
  参考文献：
  名称：

  The 2-Naphthylmethyl (NAP) Group in Carbohydrate Synthesis: First Total Synthesis of the GlyCAM-1 Oligosaccharide Structures

  摘要：

  Total syntheses of the GlyCAM-1 (glycosylation-dependent cell adhesion molecule-1) oligosaccharide structures: [alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 4)-[alpha-Fuc-(1 --> 3)]-beta-(6-O-SO3Na)-GlcNAc-(1 --> 6)]-[alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 3)]-alpha-GalNAc-OMe (1) and [alpha-NeuAc-(2 --> 3)-beta-Gal-(1 --> 4)-[alpha-Fuc-(1 --> 3)]-beta-GlcNAc-(1 --> 6)]-[alpha-NeuAc-(2 3)-beta-Gal-(1 --> 3)]-alpha-GalNAc-OMe (2) through a novel sialyl LewisX tetrasaccharide donor are described. Employing sequential glycosylation strategy, the starting trisaccharide was regio- and stereoselectively constructed through coupling of a disaccharide imidate with the monosaccharide acceptor phenyl-6-O-naphthylmethyl-2-deoxy-2-phthalimido-1-thio-beta-D-glucopyranoside with TMSOTf as a catalyst without affecting the SPh group. The novel sialyl Lewisx tetrasaccharide donor 3 was then obtained by alpha-L-fucosylation of trisaccharide acceptor with the 2,3,4-tri-O-benzyl-1-thio-beta-L-fucoside donor. The structure of the novel sialyl Lewisx tetrasaccharide was established by a combination of 2D DQF-COSY and 2D ROESY experiments. Target oligosaccharides 1 and 2 were eventually constructed through heptasaccharide which was obtained by regioselective assembly of advanced sialyl Lewisx tetrasaccharide donor 3 and a sialylated trisaccharide acceptor in a predictable and controlled manner. Finally, target heptasaccharides 1 and 2 were fully characterized by 2D DQF-COSY, 2D ROESY, HSQC, HMBC experiments and FAB mass spectroscopy.

  DOI：

  10.1002/1521-3765(20010119)7:2<356::aid-chem356>3.0.co;2-e

文献信息

• A convergent synthesis of core 2 branched sialylated and sulfated oligosaccharides
  作者：Jie Xia、James L Alderfer、Thamarapu Srikrishnan、E.V Chandrasekaran、Khushi L Matta

  DOI：10.1016/s0968-0896(02)00246-8

  日期：2002.11

  sialylation was accomplished using donor 10 with defined configuration established through X-ray crystallographic analysis. Target oligosaccharides 1-3 were then obtained by the systematic deprotection of intermediates 24, 27 and 29. With these target oligosaccharides 1-3 obtained, biological evaluations of these molecules as enzyme substrates was undertaken and selectin binding studies are planned

  开发了合成核心2寡糖类似物1和2，以及天然形式的唾液酸化和硫酸化六糖3的收敛途径。五糖24、27和六糖28的构建分别通过受体5、7和8中6-OH的完全区域选择性糖基化来实现，这是由于这些中伯羟基的活性远高于仲轴向羟基。结构。使用通过X射线晶体学分析建立的确定构型的供体10完成立体选择性唾液酸化。然后通过中间体24、27和29的系统脱保护获得目标寡糖1-3。用这些目标寡糖1-3，