Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-trityloxymethyl-tetrahydro-pyran-3-yl ester | 193154-27-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-trityloxymethyl-tetrahydro-pyran-3-yl ester
• CAS: 193154-27-7
• 化学式: C₄₉H₃₉Cl₄NO₈
• 分子量: 911.663
• InChiKey: IWFUGBMOWLCVRM-NPZINWBCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.73
• 重原子数：
  62.0
• 可旋转键数：
  14.0
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  100.6
• 氢给体数：
  0.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-trityloxymethyl-tetrahydro-pyran-3-yl ester 在 对甲苯磺酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 2.0h， 以89%的产率得到Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-6-hydroxymethyl-2-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-tetrahydro-pyran-3-yl ester
  参考文献：
  名称：

  Synthesis and Biological Evaluation of a Backbone-Modified Phytoalexin Elicitor

  摘要：

  AbstractTwo suitably protected building blocks (11 and 33) for the preparation of amide‐linked heptaglucoside mimetic 2, an analogue of the naturally occurring phytoalexin elicitor 1a, were readily accessible by glycal chemistry. Sequential elongation of terminal glucuronide 21 with laminaribiosyl hemiaminal 33 and anomeric amine 11 by EDC/HOBt‐catalyzed condensation and two‐step conversion of the C6‐OTr moiety into the corresponding carboxylate function afforded homogeneous carbopeptoid 2 in high overall yield. It was found that replacement of the acetal linkages by the more rigid amide bonds destroys the phytoalexin‐elicitor activity.

  DOI：

  10.1002/chem.19970030614
• 作为产物：
  描述：

  (3aS,5R,6R,7S,7aR)-6,7-Bis-benzyloxy-2-methyl-5-trityloxymethyl-5,6,7,7a-tetrahydro-3aH-pyrano[2,3-d]oxazole 在 吡啶 、 硫酸 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 13.5h， 生成 Acetic acid (2R,3R,4S,5R,6R)-4,5-bis-benzyloxy-2-(4,5,6,7-tetrachloro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-trityloxymethyl-tetrahydro-pyran-3-yl ester
  参考文献：
  名称：

  Synthesis and Biological Evaluation of a Backbone-Modified Phytoalexin Elicitor

  摘要：

  AbstractTwo suitably protected building blocks (11 and 33) for the preparation of amide‐linked heptaglucoside mimetic 2, an analogue of the naturally occurring phytoalexin elicitor 1a, were readily accessible by glycal chemistry. Sequential elongation of terminal glucuronide 21 with laminaribiosyl hemiaminal 33 and anomeric amine 11 by EDC/HOBt‐catalyzed condensation and two‐step conversion of the C6‐OTr moiety into the corresponding carboxylate function afforded homogeneous carbopeptoid 2 in high overall yield. It was found that replacement of the acetal linkages by the more rigid amide bonds destroys the phytoalexin‐elicitor activity.

  DOI：

  10.1002/chem.19970030614