1-(2,4-二氟苯基)-1,3-丁二酮 | 64287-17-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-(2,4-二氟苯基)-1,3-丁二酮
• 英文名称: 1-(2,4-Difluorophenyl)butane-1,3-dione
• CAS: 64287-17-8
• 化学式: C₁₀H₈F₂O₂
• mdl: MFCD08437204
• 分子量: 198.169
• InChiKey: RJMFODAPVGCRSX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1-(2,4-二氟苯基)-1,3-丁二酮 在 N-溴代丁二酰亚胺(NBS) 、 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 、 caesium carbonate 、 三乙胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 水 、 异丙醇 、 乙腈 为溶剂， 反应 18.67h， 生成 6-[5-(2,4-difluorophenyl)-1,3-dimethyl-1H-pyrazol-4-yl]-2H-1,4-benzoxazin-3(4H)-one
  参考文献：
  名称：

  Discovery of 6-[5-(4-fluorophenyl)-3-methyl-pyrazol-4-yl]-benzoxazin-3-one derivatives as novel selective nonsteroidal mineralocorticoid receptor antagonists

  摘要：

  In the course of our study on selective nonsteroidal mineralocorticoid receptor (MR) antagonists, a series of novel benzoxazine derivatives possessing an azole ring as the core scaffold was designed for the purpose of attenuating the partial agonistic activity of the previously reported dihydropyrrol-2-one derivatives. Screening of alternative azole rings identified 1,3-dimethyl pyrazole 6a as a lead compound with reduced partial agonistic activity. Subsequent replacement of the 1-methyl group of the pyrazole ring with larger lipophilic side chains or polar side chains targeting Arg817 and Gln776 increased MR binding activity while maintaining the agonistic response at the lower level. Among these compounds, 6-[1-(2,2-difluoro-3-hydroxypropyl)-5-(4-fluorophenyl)-3-methyl-1H-pyrazol-4-yl]-2H-1,4-benzoxazin-3(4H)-one (37a) showed highly potent in vitro activity, high selectivity versus other steroid hormone receptors, and good pharmacokinetic profiles. Oral administration of 37a in deoxycorticosterone acetate-salt hypertensive rats showed a significant blood pressure-lowering effect with no signs of antiandrogenic effects. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2014.07.038
• 作为产物：
  描述：

  2',4'-二氟苯乙酮 、 乙酰氯 在 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 为溶剂， 反应 4.0h， 生成 1-(2,4-二氟苯基)-1,3-丁二酮
  参考文献：
  名称：

  Discovery of 6-[5-(4-fluorophenyl)-3-methyl-pyrazol-4-yl]-benzoxazin-3-one derivatives as novel selective nonsteroidal mineralocorticoid receptor antagonists

  摘要：

  In the course of our study on selective nonsteroidal mineralocorticoid receptor (MR) antagonists, a series of novel benzoxazine derivatives possessing an azole ring as the core scaffold was designed for the purpose of attenuating the partial agonistic activity of the previously reported dihydropyrrol-2-one derivatives. Screening of alternative azole rings identified 1,3-dimethyl pyrazole 6a as a lead compound with reduced partial agonistic activity. Subsequent replacement of the 1-methyl group of the pyrazole ring with larger lipophilic side chains or polar side chains targeting Arg817 and Gln776 increased MR binding activity while maintaining the agonistic response at the lower level. Among these compounds, 6-[1-(2,2-difluoro-3-hydroxypropyl)-5-(4-fluorophenyl)-3-methyl-1H-pyrazol-4-yl]-2H-1,4-benzoxazin-3(4H)-one (37a) showed highly potent in vitro activity, high selectivity versus other steroid hormone receptors, and good pharmacokinetic profiles. Oral administration of 37a in deoxycorticosterone acetate-salt hypertensive rats showed a significant blood pressure-lowering effect with no signs of antiandrogenic effects. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2014.07.038

文献信息

• A Modified Synthesis of Fluorinated 1,3-Diketones
  作者：Krishna C. Joshi、Bidya S. Joshi

  DOI：10.1016/s0022-1139(00)81942-9

  日期：1986.7

  The reinvestigation of acylation reactions of fluorinated aryl methylketones with ethyl esters at 0°C afforded fluorinated 1, 3-diketones in excellent yields.

  在0°C下对氟化芳基甲基酮与乙酯的酰化反应进行了重新研究，从而以优异的收率得到了氟化1，3-二酮。
• JOSHI K. C.; PATHAK V. N.; GROVER V., J. FLUOR. CHEM., 1981, 17, NO 6, 555-560
  作者：JOSHI K. C.、 PATHAK V. N.、 GROVER V.

  DOI：——

  日期：——
• JOSHI, KRISHNA, C.;JOSHI, BIDYA, S., J. FLUOR. CHEM., 1986, 32, N 2, 229-231
  作者：JOSHI, KRISHNA, C.、JOSHI, BIDYA, S.

  DOI：——

  日期：——
• Discovery of 6-[5-(4-fluorophenyl)-3-methyl-pyrazol-4-yl]-benzoxazin-3-one derivatives as novel selective nonsteroidal mineralocorticoid receptor antagonists
  作者：Tomoaki Hasui、Norio Ohyabu、Taiichi Ohra、Koji Fuji、Takahiro Sugimoto、Jun Fujimoto、Kouhei Asano、Masato Oosawa、Sachiko Shiotani、Nobuhiro Nishigaki、Keiji Kusumoto、Hideki Matsui、Atsushi Mizukami、Noriyuki Habuka、Satoshi Sogabe、Satoshi Endo、Midori Ono、Christopher S. Siedem、Tony P. Tang、Cassandra Gauthier、Lisa A. De Meese、Steven A. Boyd、Shoji Fukumoto

  DOI：10.1016/j.bmc.2014.07.038

  日期：2014.10

  In the course of our study on selective nonsteroidal mineralocorticoid receptor (MR) antagonists, a series of novel benzoxazine derivatives possessing an azole ring as the core scaffold was designed for the purpose of attenuating the partial agonistic activity of the previously reported dihydropyrrol-2-one derivatives. Screening of alternative azole rings identified 1,3-dimethyl pyrazole 6a as a lead compound with reduced partial agonistic activity. Subsequent replacement of the 1-methyl group of the pyrazole ring with larger lipophilic side chains or polar side chains targeting Arg817 and Gln776 increased MR binding activity while maintaining the agonistic response at the lower level. Among these compounds, 6-[1-(2,2-difluoro-3-hydroxypropyl)-5-(4-fluorophenyl)-3-methyl-1H-pyrazol-4-yl]-2H-1,4-benzoxazin-3(4H)-one (37a) showed highly potent in vitro activity, high selectivity versus other steroid hormone receptors, and good pharmacokinetic profiles. Oral administration of 37a in deoxycorticosterone acetate-salt hypertensive rats showed a significant blood pressure-lowering effect with no signs of antiandrogenic effects. (C) 2014 Elsevier Ltd. All rights reserved.