pivaloyl(-2)[TfaNH(-3d)][Bn(-6)]4-deoxy-D-xylHex(b1-4)[Bn(-6)]b-Gul1Me2Me3N | 1053621-92-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: pivaloyl(-2)[TfaNH(-3d)][Bn(-6)]4-deoxy-D-xylHex(b1-4)[Bn(-6)]b-Gul1Me2Me3N
• 英文别名: [(2S,3R,4S,6S)-2-[(2R,3R,4R,5R,6R)-4-amino-5,6-dimethoxy-2-(phenylmethoxymethyl)oxan-3-yl]oxy-6-(phenylmethoxymethyl)-4-[(2,2,2-trifluoroacetyl)amino]oxan-3-yl] 2,2-dimethylpropanoate
• CAS: 1053621-92-3
• 化学式: C₃₅H₄₇F₃N₂O₁₀
• 分子量: 712.761
• InChiKey: RYNLCRCHLJMOOI-FPHYCXEFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  50
• 可旋转键数：
  16
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  146
• 氢给体数：
  2
• 氢受体数：
  14

反应信息

• 作为反应物：
  描述：

  pivaloyl(-2)[TfaNH(-3d)][Bn(-6)]4-deoxy-D-xylHex(b1-4)[Bn(-6)]b-Gul1Me2Me3N 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 48.17h， 生成
  参考文献：
  名称：

  An Ezomycin Model Glycosylation

  摘要：

  A model glycosylation reaction for application to the synthesis of the ezomycin class of antibiotics is described. The ezoaminuroic thioglycoside donor 13, with a reduced and protected C-6 position and trifluoroacetamide at C-3, was prepared from the Cerny epoxide 7 by a nine-step procedure. The model D-pulo-pyranoside acceptor 20, which closely resembles an actual acceptor in the vicinity of the reacting axial hydroxyl, was synthesized from methyl beta-D-galactopyranoside 14. Glycosylation with N-iodosuccinimide/triflic acid as promoter gave the disaccharide 21 in 90% yield.

  DOI：

  10.1021/jo00096a022
• 作为产物：
  描述：

  甲基-Β-D-吡喃半乳糖苷 在 吡啶 、 N-碘代丁二酰亚胺 、 3 A molecular sieve 、 四丁基溴化铵 、 水 、 4-甲基苯磺酸吡啶 、 sodium hydride 、 二正丁基氧化锡 、 对甲苯磺酸 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙腈 、 苯 为溶剂， 反应 136.67h， 生成 pivaloyl(-2)[TfaNH(-3d)][Bn(-6)]4-deoxy-D-xylHex(b1-4)[Bn(-6)]b-Gul1Me2Me3N
  参考文献：
  名称：

  An Ezomycin Model Glycosylation

  摘要：

  A model glycosylation reaction for application to the synthesis of the ezomycin class of antibiotics is described. The ezoaminuroic thioglycoside donor 13, with a reduced and protected C-6 position and trifluoroacetamide at C-3, was prepared from the Cerny epoxide 7 by a nine-step procedure. The model D-pulo-pyranoside acceptor 20, which closely resembles an actual acceptor in the vicinity of the reacting axial hydroxyl, was synthesized from methyl beta-D-galactopyranoside 14. Glycosylation with N-iodosuccinimide/triflic acid as promoter gave the disaccharide 21 in 90% yield.

  DOI：

  10.1021/jo00096a022

文献信息

• An Ezomycin Model Glycosylation
  作者：Spencer Knapp、Carlos Jaramillo、Brett Freeman

  DOI：10.1021/jo00096a022

  日期：1994.8

  A model glycosylation reaction for application to the synthesis of the ezomycin class of antibiotics is described. The ezoaminuroic thioglycoside donor 13, with a reduced and protected C-6 position and trifluoroacetamide at C-3, was prepared from the Cerny epoxide 7 by a nine-step procedure. The model D-pulo-pyranoside acceptor 20, which closely resembles an actual acceptor in the vicinity of the reacting axial hydroxyl, was synthesized from methyl beta-D-galactopyranoside 14. Glycosylation with N-iodosuccinimide/triflic acid as promoter gave the disaccharide 21 in 90% yield.