1-(2-aminoethyl)-4-(4-iodophenyl)piperazine | 1526935-33-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 1-(2-aminoethyl)-4-(4-iodophenyl)piperazine
• 英文别名: 2-[4-(4-Iodophenyl)piperazin-1-yl]ethanamine
• CAS: 1526935-33-0
• 化学式: C₁₂H₁₈IN₃
• 分子量: 331.2
• InChiKey: YPAYFPSBDMSGPN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  32.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(2-aminoethyl)-4-(4-iodophenyl)piperazine 在 盐酸 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二甲基亚砜 、 异丙醇 为溶剂， 反应 3.0h， 生成 (R)-1-(4-iodophenyl)-4-(4-(7-hydroxychroman-2-yl)-3-azabutyl)piperazine oxalic acid
  参考文献：
  名称：

  Synthesis and Characterization of a Novel Series of Agonist Compounds as Potential Radiopharmaceuticals for Imaging Dopamine D_2/3 Receptors in Their High-Affinity State

  摘要：

  Imaging of dopamine D-2/3 receptors (D2/3R) can shed light on the nature of several neuropsychiatric disorders in which dysregulation of D2/3R signaling is involved. Agonist D-2/3 tracers for PET/SPECT imaging are considered to be superior to antagonists because they are more sensitive to dopamine concentrations and may selectively label the high-affinity receptor state. Carbon-11-labeled D2/3R agonists have been developed, but these short-lived tracers can be used only in centers with a cyclotron. Here, we report the development of a series of novel D2R agonist compounds based on the 2-aminomethylchromane (AMC) scaffold that provides ample opportunities for the introduction of longer-lived [F-18] or [I-123]. Binding experiments showed that several AMC compounds have a high affinity and selectivity for D2/3R and act as agonists. Two fluorine-containing compounds were [18(F)]-labeled, and both displayed specific binding to striatal D2/3R in rat brain slices in vitro. These findings encourage further in vivo evaluations.

  DOI：

  10.1021/jm401384w
• 作为产物：
  描述：

  1-(2-N-(tert-butylcarbamate)ethyl)-4-(4-iodophenyl)piperazine 在 盐酸 作用下， 以 水 为溶剂， 反应 0.25h， 以65%的产率得到1-(2-aminoethyl)-4-(4-iodophenyl)piperazine
  参考文献：
  名称：

  Synthesis and Characterization of a Novel Series of Agonist Compounds as Potential Radiopharmaceuticals for Imaging Dopamine D_2/3 Receptors in Their High-Affinity State

  摘要：

  Imaging of dopamine D-2/3 receptors (D2/3R) can shed light on the nature of several neuropsychiatric disorders in which dysregulation of D2/3R signaling is involved. Agonist D-2/3 tracers for PET/SPECT imaging are considered to be superior to antagonists because they are more sensitive to dopamine concentrations and may selectively label the high-affinity receptor state. Carbon-11-labeled D2/3R agonists have been developed, but these short-lived tracers can be used only in centers with a cyclotron. Here, we report the development of a series of novel D2R agonist compounds based on the 2-aminomethylchromane (AMC) scaffold that provides ample opportunities for the introduction of longer-lived [F-18] or [I-123]. Binding experiments showed that several AMC compounds have a high affinity and selectivity for D2/3R and act as agonists. Two fluorine-containing compounds were [18(F)]-labeled, and both displayed specific binding to striatal D2/3R in rat brain slices in vitro. These findings encourage further in vivo evaluations.

  DOI：

  10.1021/jm401384w

文献信息

• Radiolabelled alkylamino-benzothiazole and -benzoxazole derivatives and their use as D4 ligands
  申请人：JANSSEN PHARMACEUTICA N.V.

  公开号：EP1325917A1

  公开（公告）日：2003-07-09

  The present invention concerns the radiolabelled compounds of formula the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein X is O or S; n is 2, 3, 4 or 5; R1 is hydrogen, C1-6alkyl, C1-6alkyloxy or halo; R2 is hydrogen, C1-6alkyl, phenyl, phenylC1-6alkyl or phenylcarbonyl; R3 and R4 each independently are selected from hydrogen, halo, nitro, C1-6alkyl, C1-6alkyloxy, haloC1-6alkyl, aminosulfonyl, mono- or di(C1-4alkyl)aminosulfonyl; or R3 and R4 may also be taken together to form a bivalent radical of formula -CH=CH-CH=CH- , characterized in that the compound has at least one halo which is a radioactive isotope of iodine, bromine or fluorine, or has at least one 11C-atom or tritium atom ; it further relates to a process of marking dopamine D4 receptor sites and a process for imaging an organ.

  本发明涉及放射性标记的式化合物 其中X为O或S；n为2、3、4或5；R1为氢、C1-6烷基、C1-6烷氧基或卤代；R2 是氢、C1-6烷基、苯基、苯基 C1-6 烷基或苯基羰基； R3 和 R4 各自独立地选自氢、卤素、硝基、C1-6烷基、C1-6烷氧基、卤代 C1-6 烷基、氨磺酰基、单-或二(C1-4烷基)氨磺酰基；或 R3 和 R4 也可以结合在一起形成式-CH=CH-CH=CH-的二价基，其特征在于该化合物具有至少一个卤素，该卤素是碘、溴或氟的放射性同位素，或具有至少一个 11C 原子或氚原子；它还涉及一种标记多巴胺 D4 受体位点的工艺和一种器官成像工艺。
• Benzyl Phenylsemicarbazides: A Chemistry-Driven Approach Leading to G Protein-Biased Dopamine D₄ Receptor Agonists with High Subtype Selectivity
  作者：Anna S. Pirzer、Roman Lasch、Heike Friedrich、Harald Hübner、Peter Gmeiner、Markus R. Heinrich

  DOI：10.1021/acs.jmedchem.9b01085

  日期：2019.11.14

  Many subtype-selective dopamine receptor ligands developed for the D-2-D-4 family incorporate a 1-arylpiperazine-derived primary recognition motif, which is connected to a lipophilic moiety occupying an extended binding pocket (EBP) of the receptor via an aliphatic linker of variable lengths. The evaluation of a novel group of dopamine receptor ligands now showed that highly subtype-selective ligands [up to K-i(D-4.4) = 0.25 nM, D-2L/D-4.4 = 320, D-3/D-4.4 = 710 for APH199 (17)] can be obtained by choosing a relatively large and conformationally flexible 1-benzyl-1-phenylsemicarbazide substructure to fill the EBP. The novel chemotype APH199 (17) was found to act as a full agonist at the D-4 receptor showing significant bias toward G protein activation over beta-arrestin recruitment in comparison to quinpirole.
• ALKYLAMINOBENZOTHIAZOLE AND -BENZOXAZOLE DERIVATIVES
  申请人：JANSSEN PHARMACEUTICA N.V.

  公开号：EP0912533A1

  公开（公告）日：1999-05-06
• US6103725A
  申请人：——

  公开号：US6103725A

  公开（公告）日：2000-08-15
• US6224849B1
  申请人：——

  公开号：US6224849B1

  公开（公告）日：2001-05-01