Ethyl 1-[(2-fluorophenyl)methyl]piperazine-2-carboxylate | 1061367-26-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Ethyl 1-[(2-fluorophenyl)methyl]piperazine-2-carboxylate
• CAS: 1061367-26-7
• 化学式: C₁₄H₁₉FN₂O₂
• 分子量: 266.315
• InChiKey: JYGWEGFNWARAGN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  41.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Ethyl 1-[(2-fluorophenyl)methyl]piperazine-2-carboxylate 在 甲酸 、 三甲基铝 作用下， 以 甲醇 、 水 为溶剂， 反应 27.0h， 生成 1-(2-fluorobenzyl)-2-(4,5-dihydro[1H]imidazol-2-yl)-4-methylpiperazine
  参考文献：
  名称：

  Design and Synthesis of Imidazoline Derivatives Active on Glucose Homeostasis in a Rat Model of Type II Diabetes. 1. Synthesis and Biological Activities of N-Benzyl-N ‘-(arylalkyl)-2-(4‘,5‘-dihydro-1‘H-imidazol-2‘-yl)piperazines

  摘要：

  The physiopathology of non-insulin-dependent diabetes mellitus is associated with a dysfunction in the regulation of insulin secretion. The alpha(2)-adrenoceptors have been reported to be involved in this alteration, although at-antagonists containing an imidazoline ring may stimulate insulin secretion independently of alpha(2)-adrenoceptor blockage. Recently, a new ''imidazoline-binding site'' involved in the control of K+-ATP channels in the B cell has been proposed. In the course of searching for new antidiabetic agents, 1-alkyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl)piperazines, 1-benzyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl) and 1-benzyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl)-4-benzylpiperazines have been designed and evaluated as potential adrenoceptor antagonists. Pharmacological evaluation was performed in vivo using glucose tolerance tests performed on a rat model of type II diabetes obtained by injection of a low dose (35 mg/kg) of streptozotocin (STZ). For some compounds, binding experiments were performed on alpha(2) adrenoceptors and I-1 and I-2 imidazoline-binding sites. The biological and physicochemical data have been combined with molecular modeling studies to establish structure-activity relationships. The most active compound was 1-(2',4'-dichlorobenzyl)-2 (4',5'-dihydro-1'H-imidazol-2'-yl)-4-methylpiperazine (7f); intraperitoneal administration (100 mu mol/kg) of 7f strongly improved glucose tolerance in STZ diabetic rats. This effect seemed at least partly mediated by a significant increase of insulin secretion. Other compounds of the same family (7b, 16f, 23b) have also shown potent activity. We found no correlation between in vivo antihyperglycemic properties and in vitro affinities for alpha(2)-adrenoceptors or I-1 and I-2 binding sites. These compounds can be considered as antihyperglycemic agents potentially useful for treatment of type II diabetes and are currently under complementary investigation.

  DOI：

  10.1021/jm9608624
• 作为产物：
  描述：

  ethyl 1,4-bis(phenylmethyl)-2-piperazine carboxylate dihydrochloride 在 palladium on activated charcoal 盐酸 、 氢气 、 potassium carbonate 、 三乙胺 、 potassium iodide 作用下， 以 乙醇 、 二氯甲烷 、 丙酮 为溶剂， 反应 18.0h， 生成 Ethyl 1-[(2-fluorophenyl)methyl]piperazine-2-carboxylate
  参考文献：
  名称：

  Design and Synthesis of Imidazoline Derivatives Active on Glucose Homeostasis in a Rat Model of Type II Diabetes. 1. Synthesis and Biological Activities of N-Benzyl-N ‘-(arylalkyl)-2-(4‘,5‘-dihydro-1‘H-imidazol-2‘-yl)piperazines

  摘要：

  The physiopathology of non-insulin-dependent diabetes mellitus is associated with a dysfunction in the regulation of insulin secretion. The alpha(2)-adrenoceptors have been reported to be involved in this alteration, although at-antagonists containing an imidazoline ring may stimulate insulin secretion independently of alpha(2)-adrenoceptor blockage. Recently, a new ''imidazoline-binding site'' involved in the control of K+-ATP channels in the B cell has been proposed. In the course of searching for new antidiabetic agents, 1-alkyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl)piperazines, 1-benzyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl) and 1-benzyl-2-(4',5'-dihydro-1'H-imidazol-2'-yl)-4-benzylpiperazines have been designed and evaluated as potential adrenoceptor antagonists. Pharmacological evaluation was performed in vivo using glucose tolerance tests performed on a rat model of type II diabetes obtained by injection of a low dose (35 mg/kg) of streptozotocin (STZ). For some compounds, binding experiments were performed on alpha(2) adrenoceptors and I-1 and I-2 imidazoline-binding sites. The biological and physicochemical data have been combined with molecular modeling studies to establish structure-activity relationships. The most active compound was 1-(2',4'-dichlorobenzyl)-2 (4',5'-dihydro-1'H-imidazol-2'-yl)-4-methylpiperazine (7f); intraperitoneal administration (100 mu mol/kg) of 7f strongly improved glucose tolerance in STZ diabetic rats. This effect seemed at least partly mediated by a significant increase of insulin secretion. Other compounds of the same family (7b, 16f, 23b) have also shown potent activity. We found no correlation between in vivo antihyperglycemic properties and in vitro affinities for alpha(2)-adrenoceptors or I-1 and I-2 binding sites. These compounds can be considered as antihyperglycemic agents potentially useful for treatment of type II diabetes and are currently under complementary investigation.

  DOI：

  10.1021/jm9608624