(11aR)-6-bromo-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H)-dione | 181017-71-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯二氮卓类
• 英文名称: (11aR)-6-bromo-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H)-dione
• 英文别名: (6aR)-1-bromo-6a,7,8,9-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-6,11-dione
• CAS: 181017-71-0
• 化学式: C₁₂H₁₁BrN₂O₂
• 分子量: 295.136
• InChiKey: HPEGTNADRVIHAZ-SECBINFHSA-N

物化性质

• 沸点：
  523.0±50.0 °C(Predicted)
• 密度：
  1.70±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  17
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  49.4
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (11aR)-6-bromo-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H)-dione 在 potassium tert-butylate 、 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 ethyl (13aR)-8-bromo-9-oxo-11,12,13,13a-tetrahydro-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylate
  参考文献：
  名称：

  Synthesis of 123I-Labelled Analogues of Imidazobenzodiazepine Receptor Ligands.

  摘要：

  溴代或碘代异丁烯酸酐与 N-甲基甘氨酸、L-脯氨酸或 D-脯氨酸反应，得到溴代或碘代的 1,4-苯并二氮杂环庚二酮。 或碘代的 1,4-苯并二氮杂环庚二酮，在与乙基或叔丁基异氰基乙酸酯缩合后 异氰基乙酸乙酯或异氰基乙酸叔丁酯缩合后，得到溴代或碘代咪唑苯并 碘咪唑并二氮杂卓羧酸酯。这些芳基卤化物 在（三苯基膦）存在下，用双（三丁基锡）将这些芳基卤化物转化为相应的三丁基锡烷。 三苯基膦）钯（0）的存在下，用双（三丁基锡）将这些芳基卤化物转化为相应的三丁基锡烷，然后用 在氯胺-T 的存在下，用（123I）碘化钠处理锡烷，得到所需的 123I 标记。 得到所需的 123I 标记的类似物 咪唑苯并二氮杂卓受体配体氟马西尼和溴他西尼。

  DOI：

  10.1071/ch99135
• 作为产物：
  描述：

  6-溴靛红酸酐 、 D-脯氨酸 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成 (11aR)-6-bromo-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5,11(10H)-dione
  参考文献：
  名称：

  Synthesis of iodine-123 labelled analogues of the partial agonist (S)- and (R)-bretazenil for the study of CNS benzodiazepine receptors using SPECT

  摘要：

  The (S) and (R)-[I-123]iodinated analogues of the benzodiazepine receptor partial agonist bretazenil have been synthesised for study of the central benzodiazepine receptor using SPECT. (S)- and (R)-[I-123]iodobretazenil were prepared from the appropriate tin precursors by electrophilic iododestannylation with Na[I-123] in the presence of Chloramine-T. The products were purified by semi-preparative reverse-phase HPLC with radiochemical yields of 80% in a total synthesis time of 50 minutes. The specific activity Cas determined to be greater than 2500 Ci/mmol. The radiochemical and chemical purity assessed by radio-TLC and HPLC were found to be 98%. The enantiomeric purity of the (S) and (R) isomers were greater than 97% as assessed by analytical chiral HPLC analysis.

  DOI：

  10.1002/(sici)1099-1344(199609)38:9<835::aid-jlcr898>3.0.co;2-z

文献信息

• Synthesis of 123I-Labelled Analogues of Imidazobenzodiazepine Receptor Ligands.
  作者：Meredith E. McPhee、Andrew G. Katsifis、Filomena Mattner、Damon D. Ridley

  DOI：10.1071/ch99135

  日期：——

  Reaction of bromo- or iodo-substituted isatoic anhydrides with N-methylglycine, L-proline or D-proline afforded bromo- or iodo-substituted 1,4-benzodiazepinediones which on condensation with ethyl or t-butyl isocyanoacetates gave ethyl or t-butyl bromo- or iodo-imidazobenzodiazepine carboxylates. These aryl halides were converted into the corresponding tributylstannanes with bis(tributyltin) in the presence of (triphenylphosphine)palladium(0), and the stannanes were treated with sodium (123I)iodide in the presence of chloramine-Tto give the required 123I- labelled analogues of the imidazobenzodiazepine receptor ligands flumazenil and bretazenil.

  溴代或碘代异丁烯酸酐与 N-甲基甘氨酸、L-脯氨酸或 D-脯氨酸反应，得到溴代或碘代的 1,4-苯并二氮杂环庚二酮。 或碘代的 1,4-苯并二氮杂环庚二酮，在与乙基或叔丁基异氰基乙酸酯缩合后 异氰基乙酸乙酯或异氰基乙酸叔丁酯缩合后，得到溴代或碘代咪唑苯并 碘咪唑并二氮杂卓羧酸酯。这些芳基卤化物 在（三苯基膦）存在下，用双（三丁基锡）将这些芳基卤化物转化为相应的三丁基锡烷。 三苯基膦）钯（0）的存在下，用双（三丁基锡）将这些芳基卤化物转化为相应的三丁基锡烷，然后用 在氯胺-T 的存在下，用（123I）碘化钠处理锡烷，得到所需的 123I 标记。 得到所需的 123I 标记的类似物 咪唑苯并二氮杂卓受体配体氟马西尼和溴他西尼。
• Synthesis of iodine-123 labelled analogues of the partial agonist (S)- and (R)-bretazenil for the study of CNS benzodiazepine receptors using SPECT
  作者：Andrew Katsifis、Filomena Mattner、Meredith McPhee、Michael Kassiou、Ljubco Najdovski、Branko Dikic

  DOI：10.1002/(sici)1099-1344(199609)38:9<835::aid-jlcr898>3.0.co;2-z

  日期：1996.9

  The (S) and (R)-[I-123]iodinated analogues of the benzodiazepine receptor partial agonist bretazenil have been synthesised for study of the central benzodiazepine receptor using SPECT. (S)- and (R)-[I-123]iodobretazenil were prepared from the appropriate tin precursors by electrophilic iododestannylation with Na[I-123] in the presence of Chloramine-T. The products were purified by semi-preparative reverse-phase HPLC with radiochemical yields of 80% in a total synthesis time of 50 minutes. The specific activity Cas determined to be greater than 2500 Ci/mmol. The radiochemical and chemical purity assessed by radio-TLC and HPLC were found to be 98%. The enantiomeric purity of the (S) and (R) isomers were greater than 97% as assessed by analytical chiral HPLC analysis.