methyl (6-O-benzyl-β-D-galactopyranosyl)-(1->4)-6-O-benzyl-2-deoxy-2-tetrachlorophthaimido-β-D-glucopyranoside | 403833-02-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (6-O-benzyl-β-D-galactopyranosyl)-(1->4)-6-O-benzyl-2-deoxy-2-tetrachlorophthaimido-β-D-glucopyranoside
• 英文别名: 4,5,6,7-tetrachloro-2-[(2R,3R,4R,5S,6R)-4-hydroxy-2-methoxy-6-(phenylmethoxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(phenylmethoxymethyl)oxan-2-yl]oxyoxan-3-yl]isoindole-1,3-dione
• CAS: 403833-02-3
• 化学式: C₃₅H₃₅Cl₄NO₁₂
• 分子量: 803.474
• InChiKey: UOMXKYBJLUMNEF-QPZGCBGPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  52
• 可旋转键数：
  12
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  174
• 氢给体数：
  4
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  methyl (6-O-benzyl-β-D-galactopyranosyl)-(1->4)-6-O-benzyl-2-deoxy-2-tetrachlorophthaimido-β-D-glucopyranoside 、 ethyl (2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl)-(1->4)-6-O-benzyl-2-deoxy-2-tetrachlorophthalimido-1-thio-β-D-glucopyranoside 在 3 A molecular sieve 、 三氟甲烷磺酸甲酯 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 以46%的产率得到methyl (2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl)-(1->4)-(6-O-benzyl-2-deoxy-2-tetrachlorophthalimido-β-D-glucopyranosyl)-(1->3)-(6-O-benzyl-β-D-galactopyranosyl)-(1->4)-(6-O-benzyl-2-deoxy-2-tetrachlorophthalimido-β-D-glucopyranoside)
  参考文献：
  名称：

  EFFICIENT SYNTHESIS OF POLYLACTOSAMINE STRUCTURES THROUGH REGIOSELECTIVE GLYCOSYLATIONS1

  摘要：

  Di-, tri- and tetramers of beta-(1 -->3)-linked N-acetyllactosamine residues have been synthesised as their methyl glycosides, to be used in ITC binding studies to various galectins. The synthetic strategy involves two types of regioselective glycosylations: couplings of a galactosyl donor to 3,4-diol N-tetrachlorophthalimido glucose acceptors to give the lactosamine monomer building blocks, and subsequent formation of the oligomers through consecutive couplings of lactosamine donors to 2',3',4'-lactosamine acceptors, with high selectivity for the desired products.

  DOI：

  10.1081/car-100108275
• 作为产物：
  描述：

  2,3,4-tri-O-acetyl-6-O-benzyl-α-D-galactopyranosyl bromide 在 盐酸 、 N-碘代丁二酰亚胺 、 3 A molecular sieve 、 三乙基硅基三氟甲磺酸酯 、 silver trifluoromethanesulfonate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 37.0h， 生成 methyl (6-O-benzyl-β-D-galactopyranosyl)-(1->4)-6-O-benzyl-2-deoxy-2-tetrachlorophthaimido-β-D-glucopyranoside
  参考文献：
  名称：

  EFFICIENT SYNTHESIS OF POLYLACTOSAMINE STRUCTURES THROUGH REGIOSELECTIVE GLYCOSYLATIONS1

  摘要：

  Di-, tri- and tetramers of beta-(1 -->3)-linked N-acetyllactosamine residues have been synthesised as their methyl glycosides, to be used in ITC binding studies to various galectins. The synthetic strategy involves two types of regioselective glycosylations: couplings of a galactosyl donor to 3,4-diol N-tetrachlorophthalimido glucose acceptors to give the lactosamine monomer building blocks, and subsequent formation of the oligomers through consecutive couplings of lactosamine donors to 2',3',4'-lactosamine acceptors, with high selectivity for the desired products.

  DOI：

  10.1081/car-100108275

文献信息

• EFFICIENT SYNTHESIS OF POLYLACTOSAMINE STRUCTURES THROUGH REGIOSELECTIVE GLYCOSYLATIONS1
  作者：Therese Buskas、Peter Konradsson、Stefan Oscarson

  DOI：10.1081/car-100108275

  日期：——

  Di-, tri- and tetramers of beta-(1 -->3)-linked N-acetyllactosamine residues have been synthesised as their methyl glycosides, to be used in ITC binding studies to various galectins. The synthetic strategy involves two types of regioselective glycosylations: couplings of a galactosyl donor to 3,4-diol N-tetrachlorophthalimido glucose acceptors to give the lactosamine monomer building blocks, and subsequent formation of the oligomers through consecutive couplings of lactosamine donors to 2',3',4'-lactosamine acceptors, with high selectivity for the desired products.