1-bromo-4-methoxybutan-2-one | 83821-00-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-bromo-4-methoxybutan-2-one
• 英文别名: 1-bromo-4-methoxy-butan-2-one
• CAS: 83821-00-5
• 化学式: C₅H₉BrO₂
• 分子量: 181.029
• InChiKey: HGICCAVOSWSQTO-UHFFFAOYSA-N

物化性质

• 沸点：
  206.7±15.0 °C(Predicted)
• 密度：
  1.417±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  8
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-bromo-4-methoxybutan-2-one 在 盐酸 、 氢氧化钾 、 sodium hydride 、 三乙胺 作用下， 以 乙醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 33.75h， 生成 6-(3-Methoxy-propyl)-2,3-dihydro-1H-pyrrolizine-1,7-dicarboxylic acid 1-isopropyl ester
  参考文献：
  名称：

  1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸及其同源吡啶和吖庚因类似物的合成

  摘要：

  已经设计了多种先前未知的 1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸及其各种 5-和 6-取代衍生物的合成方法。其中一些过程已经扩展到迄今为止未报道的 5,6,7,8-四氢吡咯并[1,2-a]吡啶-8-羧酸和5,6,7,8-四氢-9H-吡咯并[1, 2-a]氮杂-9-羧酸衍生物。开发了两种将吡咯转化为相应吡咯-2-乙酸酯的新工艺。这两种方法都基于使用容易获得的乙二酰吡咯衍生物作为起始材料。一个序列涉及α-酮酯的皂化，然后是粗α-酮酸盐的Wolff-Kishner 还原和随后由此产生的乙酸衍生物的酯化。

  DOI：

  10.1139/v82-328
• 作为产物：
  描述：

  甲醇 、 4-羟基-2-丁酮 在 溴 作用下， 生成 1-bromo-4-methoxybutan-2-one
  参考文献：
  名称：

  Probing the active site of rat porphobilinogen synthase using newly developed inhibitors

  摘要：

  The structurally related tetrapyrrolic pigments are a group of natural products that participate in many of the fundamental biosynthetic and catabolic processes of living organisms. Porphobilinogen synthase catalyzes a rate-limiting step for the biosyntheses of tetrapyrrolic natural products. In the present study, a variety of new substrate analogs and reaction intermediate analogs were synthesized, which were used as probes for studying the active site of rat porphobilinogen synthase. The compounds 1, 3, 6, 9, 14, 16, and 28 were found to be competitive inhibitors of rat porphobilinogen synthase with inhibition constants ranging from 0.96 to 73.04 mM. Compounds 7, 10, 12, 13, 15, 17, 18, and 26 were found to be irreversible enzyme inhibitors. For irreversible inhibitors, loose-binding inhibitors were found to give stronger inactivation. The amino group and carboxyl group of the analogs were found to be important for their binding to the enzyme. This study increased our understanding of the active site of porphobilinogen synthase. (C) 2008 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.bioorg.2008.11.001

文献信息

• 3-Thia-4-arylquinolin-2-one potassium channel modulators
  申请人：Boy M. Kenneth

  公开号：US20050176763A1

  公开（公告）日：2005-08-11

  This invention describes compounds of Formula (I) which are modulators of potassium channels and are useful for treating conditions affected by abnormal potassium channel activity including erectile dysfunction and irritable bowel syndrome.

  这项发明描述了Formula (I)的化合物，这些化合物是钾通道的调节剂，可用于治疗受异常钾通道活性影响的疾病，包括勃起功能障碍和肠易激综合征。
• 3-Thio-quinolinone maxi-K openers for the treatment of erectile dysfunction
  作者：Kenneth M. Boy、Jason M. Guernon、Sing-Yuen Sit、Kai Xie、Piyasena Hewawasam、Christopher G. Boissard、Steven I. Dworetzky、Joanne Natale、Valentin K. Gribkoff、Nicholas Lodge、John E. Starrett

  DOI：10.1016/j.bmcl.2004.07.080

  日期：2004.10

  A series of Maxi-K openers for the treatment of erectile dysfunction based on the 3-thio-quinolinone core is described. Significant levels of channel opening (up to 550% of control) are seen in transfected oocytes. Functional activity in rabbit corpus cavernosum tissue strips confirms the potential to effect therapy for ED, the effect being maximal for the 3-amino-2-hydroxy thiol side chain. (C) 2004 Elsevier Ltd. All rights reserved.
• CARPIO, H.;GALEAZZI, E.;GREENHOUSE, R.;GUZMAN, A.;VELARDE, E.;ANTONIO, Y.+, CAN. J. CHEM., 1982, 60, N 18, 2295-2312
  作者：CARPIO, H.、GALEAZZI, E.、GREENHOUSE, R.、GUZMAN, A.、VELARDE, E.、ANTONIO, Y.+

  DOI：——

  日期：——
• Probing the active site of rat porphobilinogen synthase using newly developed inhibitors
  作者：Nan Li、Xiusheng Chu、Xiaojun Liu、Ding Li

  DOI：10.1016/j.bioorg.2008.11.001

  日期：2009.2

  The structurally related tetrapyrrolic pigments are a group of natural products that participate in many of the fundamental biosynthetic and catabolic processes of living organisms. Porphobilinogen synthase catalyzes a rate-limiting step for the biosyntheses of tetrapyrrolic natural products. In the present study, a variety of new substrate analogs and reaction intermediate analogs were synthesized, which were used as probes for studying the active site of rat porphobilinogen synthase. The compounds 1, 3, 6, 9, 14, 16, and 28 were found to be competitive inhibitors of rat porphobilinogen synthase with inhibition constants ranging from 0.96 to 73.04 mM. Compounds 7, 10, 12, 13, 15, 17, 18, and 26 were found to be irreversible enzyme inhibitors. For irreversible inhibitors, loose-binding inhibitors were found to give stronger inactivation. The amino group and carboxyl group of the analogs were found to be important for their binding to the enzyme. This study increased our understanding of the active site of porphobilinogen synthase. (C) 2008 Elsevier Inc. All rights reserved.
• Synthesis of l,2-dihydro-3<i>H</i>-pyrrolo[1,2-<i>a</i>]pyrrole-1-carboxylic acids and homologous pyridine and azepine analogues thereof
  作者：Humberto Carpio、Edvige Galeazzi、Robert Greenhouse、Angel Guzmán、Esperanza Velarde、Yulia Antonio、Fidencio Franco、Alicia Leon、Virginia Pérez、Raquel Salas、David Valdés、Jack Ackrell、Diane Cho、Pasquale Gallegra、Otto Halpern、Richard Koehler、Michael L. Maddox、Joseph M. Muchowski、Anthony Prince、Derek Tegg、T. Craig Thurber、Albert R. Van Horn、Doug Wren

  DOI：10.1139/v82-328

  日期：1982.9.15

  Several syntheses of the previously unknown 1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid and various 5- and 6-substituted derivatives thereof have been devised. Some of these processes have been extended to the heretofore unreported 5,6,7,8-tetrahydropyrrolo[1,2-a]pyridine-8-carboxylic acid and 5,6,7,8-tetrahydro-9H-pyrrolo[1,2-a]azepine-9-carboxylic acid derivatives.Two new processes were

  已经设计了多种先前未知的 1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸及其各种 5-和 6-取代衍生物的合成方法。其中一些过程已经扩展到迄今为止未报道的 5,6,7,8-四氢吡咯并[1,2-a]吡啶-8-羧酸和5,6,7,8-四氢-9H-吡咯并[1, 2-a]氮杂-9-羧酸衍生物。开发了两种将吡咯转化为相应吡咯-2-乙酸酯的新工艺。这两种方法都基于使用容易获得的乙二酰吡咯衍生物作为起始材料。一个序列涉及α-酮酯的皂化，然后是粗α-酮酸盐的Wolff-Kishner 还原和随后由此产生的乙酸衍生物的酯化。