(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 | 869732-20-7

• 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-(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
• 英文别名: [(4E,8S,9S,10E,12S,13R,14S,16R)-8,14,19-trimethoxy-13-(methoxymethoxy)-4,10,12,16-tetramethyl-3-oxo-20-phenylmethoxy-2-azabicyclo[16.3.1]docosa-1(22),4,10,18,20-pentaen-9-yl] carbamate
• CAS: 869732-20-7
• 化学式: C₃₈H₅₄N₂O₉
• 分子量: 682.855
• InChiKey: GSTWWHQKSIPPGQ-PQUBGZMJSA-N

物化性质

• 沸点：
  798.3±60.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  49
• 可旋转键数：
  11
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  137
• 氢给体数：
  2
• 氢受体数：
  9

反应信息

• 作为反应物：
  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 aluminum (III) chloride 、 苯甲醚 、 盐酸 作用下， 以 二氯甲烷 、 水 为溶剂， 以75%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
• 作为产物：
  描述：

  L-谷氨酸 在 吡啶 、 咪唑 、 2,6-二甲基吡啶 、 盐酸 、 lithium hydroxide 、 copper(l) iodide 、 Schwartz's reagent 、 草酰氯 、 dimethyl sulfide borane 、 4 A molecular sieve 、 Proton-Sponge 、 氯甲酸乙酯 、 二异丁基氢化铝 、 potassium carbonate 、 氟化氢吡啶 、 二甲基亚砜 、 三乙胺 、 N,N'-二甲基乙二胺 、 sodium nitrite 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 甲苯 、 苯 为溶剂， 反应 146.25h， 生成 (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
  参考文献：
  名称：

  Total Synthesis of Reblastatin

  摘要：

  Enantioselective total synthesis of reblastatin is described. The synthesis highlights hydrozirconation, transmetalation, aldehyde addition sequence to install E-trisubstituted olefin and C7 stereocenter, and the first use of an intramolecular Buchwald-like amidation reaction to close the 19-membered macrolactam.

  DOI：

  10.1021/ja055384d

文献信息

• Total Synthesis of Reblastatin
  作者：Iwona E. Wrona、Ana E. Gabarda、Gwilherm Evano、James S. Panek

  DOI：10.1021/ja055384d

  日期：2005.11.1

  Enantioselective total synthesis of reblastatin is described. The synthesis highlights hydrozirconation, transmetalation, aldehyde addition sequence to install E-trisubstituted olefin and C7 stereocenter, and the first use of an intramolecular Buchwald-like amidation reaction to close the 19-membered macrolactam.
• 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).