p-methoxyphenyl 3,4,6-tri-O-acetyl-2-deoxy-2-azido-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-β-D-galactopyranoside | 858127-24-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: p-methoxyphenyl 3,4,6-tri-O-acetyl-2-deoxy-2-azido-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-β-D-galactopyranoside
• CAS: 858127-24-9
• 化学式: C₄₆H₅₁N₃O₁₄
• 分子量: 869.923
• InChiKey: HHCVGNDNTHVPPY-NGRYLKFMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  63.0
• 可旋转键数：
  20.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  201.5
• 氢给体数：
  0.0
• 氢受体数：
  15.0

反应信息

• 作为反应物：
  描述：

  p-methoxyphenyl 3,4,6-tri-O-acetyl-2-deoxy-2-azido-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-β-D-galactopyranoside 在 ammonium hydroxide 、 5A molecular sieve 、 camphor-10-sulfonic acid 作用下， 以 甲醇 、 环己烷 、 1,2-二氯乙烷 、 乙腈 为溶剂， 反应 6.0h， 生成 p-methoxyphenyl 3,4,6-tri-O-benzyl-2-O-methoxycarbonyl-β-D-galactopyranosyl-(1->3)-4,6-O-benzylidene-2-deoxy-2-azido-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-β-D-galactopyranoside
  参考文献：
  名称：

  Versatile Use of Ytterbium(III) Triflate and Acid Washed Molecular Sieves in the Activation of Glycosyl Trifluoroacetimidate Donors. Assemblage of a Biologically Relevant Tetrasaccharide Sequence of Globo H

  摘要：

  The nonreducing tetrasaccharide terminus of Globo H has been assembled in good yield and excellent stereocontrol exclusively by using mild and moisture stable agents such as Yb(OTf)(3) and acid washed molecular sieves for the activation of glycosyltrifluoroacetimidate donors in the glycosylation steps.

  DOI：

  10.1021/jo050301x
• 作为产物：
  描述：

  [(2R,3R,4R,5R)-3,4-diacetyloxy-5-azido-6-[N-phenyl-C-(trifluoromethyl)carbonimidoyl]oxyoxan-2-yl]methyl acetate 、 4-甲氧苯基-2,4,6-三-O-苄基-β-D-吡喃半乳糖苷 在 4 A molecular sieve 、 ytterbium(III) triflate 作用下， 以 乙腈 为溶剂， 以70%的产率得到p-methoxyphenyl 3,4,6-tri-O-acetyl-2-deoxy-2-azido-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-β-D-galactopyranoside
  参考文献：
  名称：

  Versatile Use of Ytterbium(III) Triflate and Acid Washed Molecular Sieves in the Activation of Glycosyl Trifluoroacetimidate Donors. Assemblage of a Biologically Relevant Tetrasaccharide Sequence of Globo H

  摘要：

  The nonreducing tetrasaccharide terminus of Globo H has been assembled in good yield and excellent stereocontrol exclusively by using mild and moisture stable agents such as Yb(OTf)(3) and acid washed molecular sieves for the activation of glycosyltrifluoroacetimidate donors in the glycosylation steps.

  DOI：

  10.1021/jo050301x