2-tributylstannyl-3-chloropyrazine | 446285-68-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2-tributylstannyl-3-chloropyrazine
• 英文别名: 2-Chloro-3-(tributylstannyl)pyrazine；tributyl-(3-chloropyrazin-2-yl)stannane
• CAS: 446285-68-3
• 化学式: C₁₆H₂₉ClN₂Sn
• 分子量: 403.583
• InChiKey: GKQSRSVPELUIRW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.19
• 重原子数：
  20
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  ethyl 3-{[(trifluoromethyl)sulfonyl]oxy} azabicyclo[3.2.1]oct-2-ene-8-carboxylate 、 2-tributylstannyl-3-chloropyrazine 在 lithium chloride copper(l) iodide 、 二(氰基苯)二氯化钯 、 三苯胂 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 14.0h， 以83%的产率得到(+/-)-3-(3'-chloropyrazin-2'-yl)-8-azabicyclo[3.2.1]oct-2-ene-8-carboxylic acid ethyl ester
  参考文献：
  名称：

  3D QSAR Analyses-Guided Rational Design of Novel Ligands for the (α4)₂(β2)₃ Nicotinic Acetylcholine Receptor

  摘要：

  Three-dimensional quantitative structure-activity relationship methods, the comparative molecular field analysis (CoMFA) and the comparative molecular similarity indices analysis (CoMSIA), were applied using a training set of 45 ligands of the (alpha4)(2)(beta2)(3) nicotinic acetylcholine receptor (nAChR). All compounds are related to (-)-epibatidine, (-)-cytisine, (+)-anatoxin-a, and (-)-ferruginine, and additionally, novel diazabicyclo[4.2.1]nonane- and quinuclidin-2-ene-based structures were included. Their biological data have been determined by utilizing the same experimental protocol. Statistically reliable models of good predictive power (CoMFA r(2) = 0.928, q(2) = 0.692, no. of components = 3; CoMSIA r(2) = 0.899, q(2) = 0.701, no. of components = 3) were achieved. The results obtained were graphically interpreted in terms of field contribution maps. Hence, physicochemical. determinants of binding, such as steric and electrostatic and, for the first time, hydrophobic, hydrogen bond donor, and hydrogen bond acceptor properties, were mapped back onto the molecular structures of a set of nAChR modulators. In particular, changes in the binding affinity of the modulators as a result of modifications in the aromatic ring systems could be rationalized by the steric, electrostatic, hydrophobic, and hydrogen bond acceptor properties. These results were used to guide the rational design of new nAChR ligands such as 48-52 and 54, which were subsequently synthesized for the first time and tested. Key steps of our synthetic approaches were successfully applied Stille and Suzuki cross-coupling reactions. Predictive r(2) values of 0.614 and 0.660 for CoMFA and CoMSIA, respectively, obtained for 22 in part previously unknown ligands for the (alpha4)(2)(beta2)(3) subtype, demonstrate the high quality of the 3D QSAR models.

  DOI：

  10.1021/jm020859m

文献信息

• 3D QSAR Analyses-Guided Rational Design of Novel Ligands for the (α4)₂(β2)₃ Nicotinic Acetylcholine Receptor
  作者：Holger Gohlke、Simone Schwarz、Daniela Gündisch、Maria Cristina Tilotta、Alexander Weber、Thomas Wegge、Gunther Seitz

  DOI：10.1021/jm020859m

  日期：2003.5.1

  Three-dimensional quantitative structure-activity relationship methods, the comparative molecular field analysis (CoMFA) and the comparative molecular similarity indices analysis (CoMSIA), were applied using a training set of 45 ligands of the (alpha4)(2)(beta2)(3) nicotinic acetylcholine receptor (nAChR). All compounds are related to (-)-epibatidine, (-)-cytisine, (+)-anatoxin-a, and (-)-ferruginine, and additionally, novel diazabicyclo[4.2.1]nonane- and quinuclidin-2-ene-based structures were included. Their biological data have been determined by utilizing the same experimental protocol. Statistically reliable models of good predictive power (CoMFA r(2) = 0.928, q(2) = 0.692, no. of components = 3; CoMSIA r(2) = 0.899, q(2) = 0.701, no. of components = 3) were achieved. The results obtained were graphically interpreted in terms of field contribution maps. Hence, physicochemical. determinants of binding, such as steric and electrostatic and, for the first time, hydrophobic, hydrogen bond donor, and hydrogen bond acceptor properties, were mapped back onto the molecular structures of a set of nAChR modulators. In particular, changes in the binding affinity of the modulators as a result of modifications in the aromatic ring systems could be rationalized by the steric, electrostatic, hydrophobic, and hydrogen bond acceptor properties. These results were used to guide the rational design of new nAChR ligands such as 48-52 and 54, which were subsequently synthesized for the first time and tested. Key steps of our synthetic approaches were successfully applied Stille and Suzuki cross-coupling reactions. Predictive r(2) values of 0.614 and 0.660 for CoMFA and CoMSIA, respectively, obtained for 22 in part previously unknown ligands for the (alpha4)(2)(beta2)(3) subtype, demonstrate the high quality of the 3D QSAR models.