(4E,8S,9S,10E,12S,13R,14S,16R) carbamic acid 20-hydroxy-13-(methoxymethoxy)-4,10,12,16-tetramethyl-8,14,19-trimethoxy-3-oxo-2-aza-bicyclo[16.3.1]docosa-1(21),4,10,18(22),19-pentaen-9-yl ester | 1225609-50-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 大环内酰胺类
• 英文名称: (4E,8S,9S,10E,12S,13R,14S,16R) carbamic acid 20-hydroxy-13-(methoxymethoxy)-4,10,12,16-tetramethyl-8,14,19-trimethoxy-3-oxo-2-aza-bicyclo[16.3.1]docosa-1(21),4,10,18(22),19-pentaen-9-yl ester
• 英文别名: [(4E,8S,9S,10E,12S,13R,14S,16R)-20-hydroxy-8,14,19-trimethoxy-13-(methoxymethoxy)-4,10,12,16-tetramethyl-3-oxo-2-azabicyclo[16.3.1]docosa-1(22),4,10,18,20-pentaen-9-yl] carbamate
• CAS: 1225609-50-6
• 化学式: C₃₁H₄₈N₂O₉
• 分子量: 592.73
• InChiKey: VHRLRZPKRPUFAM-VOUDELMXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  42
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  148
• 氢给体数：
  3
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  (4E,8S,9S,10E,12S,13R,14S,16R)-carbamic acid 20-(benzyloxy)-13-(methoxymethoxy)-4,10,12,16-tetramethyl-8,14,19-trimethoxy-3-oxo-2-azabicyclo[16.3.1]docosa-1(21),4,10,18(22),19-pentaen-9-yl ester 在 三氯化硼 、 水 、 碳酸氢钠 作用下， 以 正己烷 、 二氯甲烷 、 甲醇 为溶剂， 反应 16.0h， 以53%的产率得到EH21A1
  参考文献：
  名称：

  Synthesis of Reblastatin, Autolytimycin, and Non-Benzoquinone Analogues: Potent Inhibitors of Heat Shock Protein 90

  摘要：

  A full account of an asymmetric synthesis of reblastatin (1) and the first total synthesis of autolytimycin (2) and related structural compounds is described. The syntheses expand the utility of a highly regio- and diastereoselective hydrometalation aldehyde addition sequence to assemble the fully functionalized ansa chain of the natural products. Also documented is an intramolecular copper-mediated amidation reaction to close the 19-membered macrolactams. The amidation reaction was also employed for the generation of structural derivatives (6-9) of phenolic ansamycins. Ansamycin natural products and selected structural analogues were evaluated in a competitive binding assay to breast cancer cell lysate and a cytotoxicity assay. Both reblastatin (1) and autolytimycin (2) were shown to bind the heat shock protein 90 with enhanced binding activity (similar to 25 nM) than 17-allylamino-17-demethoxygeldanamycin (17-AAG, 4), a geldanamycin (3) derivative currently under evaluation for treatment of cancer (similar to 100 nM).

  DOI：

  10.1021/jo1000109

文献信息

• Synthesis of Reblastatin, Autolytimycin, and Non-Benzoquinone Analogues: Potent Inhibitors of Heat Shock Protein 90
  作者：Iwona E. Wrona、Alexander Gozman、Tony Taldone、Gabriela Chiosis、James S. Panek

  DOI：10.1021/jo1000109

  日期：2010.5.7

  A full account of an asymmetric synthesis of reblastatin (1) and the first total synthesis of autolytimycin (2) and related structural compounds is described. The syntheses expand the utility of a highly regio- and diastereoselective hydrometalation aldehyde addition sequence to assemble the fully functionalized ansa chain of the natural products. Also documented is an intramolecular copper-mediated amidation reaction to close the 19-membered macrolactams. The amidation reaction was also employed for the generation of structural derivatives (6-9) of phenolic ansamycins. Ansamycin natural products and selected structural analogues were evaluated in a competitive binding assay to breast cancer cell lysate and a cytotoxicity assay. Both reblastatin (1) and autolytimycin (2) were shown to bind the heat shock protein 90 with enhanced binding activity (similar to 25 nM) than 17-allylamino-17-demethoxygeldanamycin (17-AAG, 4), a geldanamycin (3) derivative currently under evaluation for treatment of cancer (similar to 100 nM).