6,7-dichloro-3-(1H-imidazol-1-yl)-4H-1,2,4-benzothiadiazine 1,1-dioxide | 201224-75-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻二嗪
• 英文名称: 6,7-dichloro-3-(1H-imidazol-1-yl)-4H-1,2,4-benzothiadiazine 1,1-dioxide
• 英文别名: 6,7-dichloro-3-imidazol-1-yl-4H-1lambda6,2,4-benzothiadiazine 1,1-dioxide；6,7-dichloro-3-imidazol-1-yl-4H-1λ6,2,4-benzothiadiazine 1,1-dioxide
• CAS: 201224-75-1
• 化学式: C₁₀H₆Cl₂N₄O₂S
• 分子量: 317.155
• InChiKey: CEMBOQYSNWXBOH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  84.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  DL-氨基丙醇 、 6,7-dichloro-3-(1H-imidazol-1-yl)-4H-1,2,4-benzothiadiazine 1,1-dioxide 生成 (R/S)-6,7-dichloro-3-(1-hydroxy-2-propyl)amino-4H-1,2,4-benzothiadiazine 1,1-dioxide
  参考文献：
  名称：

  Hydroxylated Analogues of ATP-Sensitive Potassium Channel Openers Belonging to the Group of 6- and/or 7-Substituted 3-Isopropylamino-4H-1,2,4-benzothiadiazine 1,1-Dioxides: Toward an Improvement in Sulfonylurea Receptor 1 Selectivity and Metabolism Stability

  摘要：

  Diversely substituted 3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxides are known to be potent K-ATP channel openers, with several drugs being selective for the SUR1/Kir6.2 channel subtype. This work examined the biological activity, tissue selectivity, and in vitro metabolic stability of hydroxylated analogues of 3-isopropylaminobenzothiadiazine dioxides. Because of the presence of a chiral center, the R and S isomers were prepared separately and characterized. R isomers were systematically found to be more potent and more selective than S isomers on pancreatic tissue (compared to vascular smooth muscle tissue), leading to compounds with an improved sulfonylurea receptor 1 (SUR1) selectivity. An in vitro metabolic study revealed that 7-chloro-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxide (1a) was rapidly biotransformed and led in part to a mixture of the corresponding (R)- and (S)-3-(1-hydroxy-2-propyl)amino-substituted derivatives. Radioisotopic experiments characterized one of the most potent and SUR1-selective enantiomers, (R)-7-chloro-3-(1-hydroxy-2-propyl)amino-4H-1,2,4-benzothiadiazine 1,1-dioxide 13a, as being a K-ATP channel opener. Moreover, 13a exhibited an enhanced metabolic stability. Such a compound can be considered as a new lead candidate displaying improved physicochemical (hydrosolubility) and pharmacological (tissue selectivity) properties as well as improved metabolic stability compared to its nonhydroxylated counterpart, 1a.

  DOI：

  10.1021/jm200786z
• 作为产物：
  描述：

  2-amino-4,5-dichlorobenzenesulfonyl chloride 在 ammonium hydroxide 作用下， 以 1,4-二氧六环 为溶剂， 反应 0.17h， 生成 6,7-dichloro-3-(1H-imidazol-1-yl)-4H-1,2,4-benzothiadiazine 1,1-dioxide
  参考文献：
  名称：

  3-Alkylamino-4H-1,2,4-benzothiadiazine 1,1-Dioxides as ATP-Sensitive Potassium Channel Openers:  Effect of 6,7-Disubstitution on Potency and Tissue Selectivity

  摘要：

  A series of 6,7-disubstituted 4H-1,2,4-benzothiadiazine 1,1-dioxides bearing a short alkylamino side chain in the 3-position were synthesized. These compounds were tested on rat pancreatic islets and on rat aorta rings. In vitro data indicated that in most cases substitution in the 6 and the 7 positions increased their activity as inhibitors of insulin secretion, while the myorelaxant potency of the drugs was maintained or enhanced according to the nature of the substituent in the 7-position. The presence of either chlorine or bromine atoms in the 6 and 7 positions did not improve the apparent selectivity of the drugs for the pancreatic tissue. By contrast, the introduction of one or two fluorine atoms, as well as the presence of a methoxy group in the 7-position, generated potent and selective inhibitors of insulin release. Radioisotopic and fluorimetric experiments performed with the most potent compound inhibiting insulin release (34, BPDZ 259, 6-chloro-7-fluoro-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxide) confirmed that the drug activated K-ATP channels. 34 was found to be one of the most potent and selective pancreatic potassium channel openers yet described.

  DOI：

  10.1021/jm0580050

文献信息

• Study of the ring closure reaction of o-aminoarylsulfonamides with 1,1′-thiocarbonyldiimidazole.
  作者：Pascal de Tullio、Bernard Pirotte、Fabian Somers、Stéphane Boverie、Fabrice Lacan、Jacques Delarge

  DOI：10.1016/s0040-4020(98)00195-1

  日期：1998.5

  new kind of compound was also obtained, namely the 3-(imidazol-1-yl)-4H-1,2,4-arylthiadiazine 1,1-dioxides. The latter appeared to be good reaction intermediates. The use of 1,1′-thiocarbonyldiimidazole opens a new synthetic route to 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxides, a heterocyclic ring system expressing important pharmacological properties. This work is the first study on the ring closure

  1,1'-硫代羰基二咪唑用作邻氨基芳基磺酰胺的闭环剂。除了形成预期的3-thioxo-2,3-dihydro-4 H -1,2,4-arylthiadiazine 1,1-dioxide衍生物外，还获得了一种新型化合物，即3-（imidazol-1 -基）-4 H -1,2,4-芳基噻二嗪1,1-二氧化物。后者似乎是良好的反应中间体。1,1'-硫代羰基二咪唑的使用为3-烷基氨基-4 H -1,2,4-芳基噻二嗪1,1-二氧化物开辟了一条新的合成路线，该杂环系统具有重要的药理特性。这项工作是对该试剂的闭环性能的首次研究。
• 3-Alkylamino-4<i>H</i>-1,2,4-benzothiadiazine 1,1-Dioxides as ATP-Sensitive Potassium Channel Openers:  Effect of 6,7-Disubstitution on Potency and Tissue Selectivity
  作者：Pascal de Tullio、Stéphane Boverie、Bénédicte Becker、Marie-Hélène Antoine、Quynh-Anh Nguyen、Pierre Francotte、Stéphane Counerotte、Sophie Sebille、Bernard Pirotte、Philippe Lebrun

  DOI：10.1021/jm0580050

  日期：2005.7.1

  A series of 6,7-disubstituted 4H-1,2,4-benzothiadiazine 1,1-dioxides bearing a short alkylamino side chain in the 3-position were synthesized. These compounds were tested on rat pancreatic islets and on rat aorta rings. In vitro data indicated that in most cases substitution in the 6 and the 7 positions increased their activity as inhibitors of insulin secretion, while the myorelaxant potency of the drugs was maintained or enhanced according to the nature of the substituent in the 7-position. The presence of either chlorine or bromine atoms in the 6 and 7 positions did not improve the apparent selectivity of the drugs for the pancreatic tissue. By contrast, the introduction of one or two fluorine atoms, as well as the presence of a methoxy group in the 7-position, generated potent and selective inhibitors of insulin release. Radioisotopic and fluorimetric experiments performed with the most potent compound inhibiting insulin release (34, BPDZ 259, 6-chloro-7-fluoro-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxide) confirmed that the drug activated K-ATP channels. 34 was found to be one of the most potent and selective pancreatic potassium channel openers yet described.
• Hydroxylated Analogues of ATP-Sensitive Potassium Channel Openers Belonging to the Group of 6- and/or 7-Substituted 3-Isopropylamino-4<i>H</i>-1,2,4-benzothiadiazine 1,1-Dioxides: Toward an Improvement in Sulfonylurea Receptor 1 Selectivity and Metabolism Stability
  作者：Pascal de Tullio、Anne-Catherine Servais、Marianne Fillet、Florian Gillotin、Fabian Somers、Patrice Chiap、Philippe Lebrun、Bernard Pirotte

  DOI：10.1021/jm200786z

  日期：2011.12.22

  Diversely substituted 3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxides are known to be potent K-ATP channel openers, with several drugs being selective for the SUR1/Kir6.2 channel subtype. This work examined the biological activity, tissue selectivity, and in vitro metabolic stability of hydroxylated analogues of 3-isopropylaminobenzothiadiazine dioxides. Because of the presence of a chiral center, the R and S isomers were prepared separately and characterized. R isomers were systematically found to be more potent and more selective than S isomers on pancreatic tissue (compared to vascular smooth muscle tissue), leading to compounds with an improved sulfonylurea receptor 1 (SUR1) selectivity. An in vitro metabolic study revealed that 7-chloro-3-isopropylamino-4H-1,2,4-benzothiadiazine 1,1-dioxide (1a) was rapidly biotransformed and led in part to a mixture of the corresponding (R)- and (S)-3-(1-hydroxy-2-propyl)amino-substituted derivatives. Radioisotopic experiments characterized one of the most potent and SUR1-selective enantiomers, (R)-7-chloro-3-(1-hydroxy-2-propyl)amino-4H-1,2,4-benzothiadiazine 1,1-dioxide 13a, as being a K-ATP channel opener. Moreover, 13a exhibited an enhanced metabolic stability. Such a compound can be considered as a new lead candidate displaying improved physicochemical (hydrosolubility) and pharmacological (tissue selectivity) properties as well as improved metabolic stability compared to its nonhydroxylated counterpart, 1a.