2-trimethylsilylethyl 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl-(1->3)-6-O-benzyl-2-deoxy-2-phthalimido-β-D-galactopyranoside | 229954-88-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-trimethylsilylethyl 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl-(1->3)-6-O-benzyl-2-deoxy-2-phthalimido-β-D-galactopyranoside
• 英文别名: [(2R,3R,4R,5R,6R)-5-(1,3-dioxoisoindol-2-yl)-2-(phenylmethoxymethyl)-4-[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(phenylmethoxymethyl)oxan-2-yl]oxy-6-(2-trimethylsilylethoxy)oxan-3-yl] acetate
• CAS: 229954-88-5
• 化学式: C₄₇H₅₇NO₁₆Si
• 分子量: 920.052
• InChiKey: AYHZJJCUIAZTQR-YLMZGASLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.0
• 重原子数：
  65
• 可旋转键数：
  23
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.49
• 拓扑面积：
  198
• 氢给体数：
  0
• 氢受体数：
  16

反应信息

• 作为反应物：
  描述：

  2-trimethylsilylethyl 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl-(1->3)-6-O-benzyl-2-deoxy-2-phthalimido-β-D-galactopyranoside 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl-(1->3)-4-O-acetyl-6-O-benzyl-2-deoxy-2-phthalimido-β-D-galactopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Synthesis and NMR assignments of galactosylgloboside and its β-d-GalNAc-(1→4)-α-d-Gal-linked positional isomer in a conjugatable form

  摘要：

  Two pentasaccharides suitable for conjugation, namely 3-aminopropyl glactosylgloboside and its beta-D-GalNAc-(1 -->4)-alpha-D-Gal-linked positional isomer, were synthesized from 3(III),4(III)-di-O-unprotected globotrioside and the trichloroacetimidate of beta-D-Gal-(1 --> 3)-beta-D-GalNPhth derivative. Glycosylation at both positions led to the formation of beta-D-GalNPhth-(1-->4)-alpha-D-Gal and beta-D-GalNPhth-(1-->3)-alpha-D-Gal-linked products in a ratio of 1:1 without selectivity. Complete NMR spectral assignments are also described. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(99)00018-x
• 作为产物：
  描述：

  ethyl 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-thiogalactopyranoside 在 吡啶 、 盐酸 、 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 3 A molecular sieve 、 4 A molecular sieve 、 sodium cyanoborohydride 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 9.0h， 生成 2-trimethylsilylethyl 2,3,4-tri-O-acetyl-6-O-benzyl-β-D-galactopyranosyl-(1->3)-6-O-benzyl-2-deoxy-2-phthalimido-β-D-galactopyranoside
  参考文献：
  名称：

  Synthesis and NMR assignments of galactosylgloboside and its β-d-GalNAc-(1→4)-α-d-Gal-linked positional isomer in a conjugatable form

  摘要：

  Two pentasaccharides suitable for conjugation, namely 3-aminopropyl glactosylgloboside and its beta-D-GalNAc-(1 -->4)-alpha-D-Gal-linked positional isomer, were synthesized from 3(III),4(III)-di-O-unprotected globotrioside and the trichloroacetimidate of beta-D-Gal-(1 --> 3)-beta-D-GalNPhth derivative. Glycosylation at both positions led to the formation of beta-D-GalNPhth-(1-->4)-alpha-D-Gal and beta-D-GalNPhth-(1-->3)-alpha-D-Gal-linked products in a ratio of 1:1 without selectivity. Complete NMR spectral assignments are also described. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(99)00018-x