methyl 4-phenoxythieno[2,3-c]pyridine-2-carboxylate | 402582-10-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 4-phenoxythieno[2,3-c]pyridine-2-carboxylate
• CAS: 402582-10-9
• 化学式: C₁₅H₁₁NO₃S
• 分子量: 285.323
• InChiKey: YRGJXIRKPYTESZ-UHFFFAOYSA-N

物化性质

• 沸点：
  445.4±40.0 °C(Predicted)
• 密度：
  1.328±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  76.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 4-phenoxythieno[2,3-c]pyridine-2-carboxylate 在 硫酸 、 potassium nitrate 作用下， 反应 0.08h， 以62%的产率得到methyl 4-(4-nitrophenoxy)thieno[2,3-c]pyridine-2-carboxylate
  参考文献：
  名称：

  Synthesis and Mode of Action of ¹²⁵I- and ³H-Labeled Thieno[2,3-c]pyridine Antagonists of Cell Adhesion Molecule Expression

  摘要：

  A series of thieno[2,3-c]pyridine antagonists of cell adhesion molecule (CAM) expression, such as A-205804 (1) and A-249377 (2), selectively suppressed the induced expression of E-selectin and ICAM-1 over VCAM-1. In an effort to explore the biological mechanism of action of these inhibitors, we synthesized I-125- and H-3-labeled thieno[2,3-c]pyridines 5 and 6. An isolated diazonium tetrafluoroborate salt efficiently trapped (NaI)-I-125 on very small scale (7.5 mug of (NaI)-I-125), providing the corresponding I-125-labeled thieno[2,3-c]pyridine in modest yield. Preliminary mechanistic investigations using these radiolabeled compounds revealed that, upon incubation with human umbilical vein endothelial cells (HUVECs), these inhibitors of CAM expression translocated to the cell nucleus and were noncovalently associated with macromolecules of molecular weight greater than 650 kDa.

  DOI：

  10.1021/jo016171j
• 作为产物：
  描述：

  3,5-二氯吡啶-4-甲醛 在 potassium tert-butylate 、 caesium carbonate 作用下， 以 四氢呋喃 为溶剂， 反应 3.5h， 生成 methyl 4-phenoxythieno[2,3-c]pyridine-2-carboxylate
  参考文献：
  名称：

  Synthesis and Mode of Action of ¹²⁵I- and ³H-Labeled Thieno[2,3-c]pyridine Antagonists of Cell Adhesion Molecule Expression

  摘要：

  A series of thieno[2,3-c]pyridine antagonists of cell adhesion molecule (CAM) expression, such as A-205804 (1) and A-249377 (2), selectively suppressed the induced expression of E-selectin and ICAM-1 over VCAM-1. In an effort to explore the biological mechanism of action of these inhibitors, we synthesized I-125- and H-3-labeled thieno[2,3-c]pyridines 5 and 6. An isolated diazonium tetrafluoroborate salt efficiently trapped (NaI)-I-125 on very small scale (7.5 mug of (NaI)-I-125), providing the corresponding I-125-labeled thieno[2,3-c]pyridine in modest yield. Preliminary mechanistic investigations using these radiolabeled compounds revealed that, upon incubation with human umbilical vein endothelial cells (HUVECs), these inhibitors of CAM expression translocated to the cell nucleus and were noncovalently associated with macromolecules of molecular weight greater than 650 kDa.

  DOI：

  10.1021/jo016171j

文献信息

• Selective Inhibition of ICAM-1 and E-Selectin Expression in Human Endothelial Cells. 2. Aryl Modifications of 4-(Aryloxy)thieno[2,3-<i>c</i>]pyridines with Fine-Tuning at C-2 Carbamides
  作者：Gui-Dong Zhu、David L. Arendsen、Indrani W. Gunawardana、Steven A. Boyd、Andrew O. Stewart、Dennis G. Fry、Barbara L. Cool、Lemma Kifle、Verlyn Schaefer、Joseph Meuth、Kennan C. Marsh、Anita J. Kempf-Grote、Patrick Kilgannon、W. Michael Gallatin、Gregory F. Okasinski

  DOI：10.1021/jm0101702

  日期：2001.10.1

  The elevated expression of cell adhesion molecules (CAMs) on the lumenal surface of vascular endothelial cells is a critical early event in the complex inflammatory process. The adhesive interactions of these CAMs that include E-selectin, ICAM-1, and VCAM-1 with their counterreceptors on leukocytes, such as integrins of the alpha (L)beta (2) family, result in migration of the leukocytes to the site of inflammation and cause tissue injury. Pharmaceutical agents that could suppress the induced expression of one or more of these cell adhesion molecules would provide a novel mechanism to attenuate the inflammatory responses associated with chronic inflammatory diseases. A-205804 (1), a potent and selective inhibitor of the induced expression of E-selectin and ICAM-1 over VCAM-1, was further modified with emphasis at the C-4 and C-2 positions to identify a more potent drug candidate with a good pharmacokinetic profile and physical properties. Replacement of the C-4 sulfur linkage in I with an oxygen atom eliminated one of the two major metabolites for this lead molecule. The para-position of the 4-phenoxy group of the thieno[2,3-c]pyridine lead is found to be very critical for a higher in vitro potency and selectivity of E-selectin and ICAM-1 over VCAM-1 expression. This position is presumably close to the solvent-accessible region of the target protein-inhibitor complex. An attempt to install a water-solubilizing group at the para-position of the phenoxy group to increase the aqueous solubility of this lead series through various linkages failed to provide an ideal inhibitor. Only small substituents such as fluorine are tolerated at the meta- and ortho-positions of the 4-phenoxy to retain a good in vitro potency. Bromo, trifluoromethyl, pyrazol-1-yl, and imidazol-1-yl are among the better substituents at the para-position. With fine-tuning at the C-2 position we discovered a series of very potent (IC50 < 5 nM for ICAM-1) and selective (> 200-fold vs VCAM-1) inhibitors with a good pharmacokinetic profile. Demonstrated efficacy in a rat rheumatoid arthritis model and in a mice asthma model with selected compounds is also reported.
• A facile and general synthesis of 2,4‐Di‐ and 2,4,7‐trisubstituted thieno[2,3‐<i>c</i>]pyridines
  作者：Gui‐Dong Zhu、Indrani W. Gunawardana、Steven A. Boyd、Laura M. Melcher

  DOI：10.1002/jhet.5570450106

  日期：2008.1

  Abstractmagnified imageTreatment of 3,5‐dibromo‐ or 3,5‐dichloro‐pyridine‐4‐carboxaldehyde 2 with one equivalent of methyl thioglycolate, followed by exposure to base, provided 4‐bromo‐ or 4‐chloro‐thieno[2,3‐c]pyridine‐2‐carboxylate 4 in good yields. Oxidation of the thieno[2,3‐c]pyridine scaffold such as 7 with mCPBA, followed by treatment with POBr3, introduced a bromine exclusively at the 7‐position of the heterocycle. The 4‐ or 7‐bromide of the thienopyridines readily underwent Suzuki, Stille coupling, and Buchwald amination reactions, to afford 4‐ or 7‐substituted analogs 6 or 11. The 2‐carboxylate of 4b or 12 was smoothly removed through saponification and decarboxylation to furnish 15 or 16. Deprotonation of the thienopyridine at C‐2 position, followed by trapping with trimethyltin chloride, afforded a 2‐stannyl analog, which was readily converted to other C‐2 derivatives via Stille reaction.
• Synthesis and Mode of Action of ¹²⁵I- and ³H-Labeled Thieno[2,3-<i>c</i>]pyridine Antagonists of Cell Adhesion Molecule Expression
  作者：Gui-Dong Zhu、Verlyn Schaefer、Steven A. Boyd、Gregory F. Okasinski

  DOI：10.1021/jo016171j

  日期：2002.2.1

  A series of thieno[2,3-c]pyridine antagonists of cell adhesion molecule (CAM) expression, such as A-205804 (1) and A-249377 (2), selectively suppressed the induced expression of E-selectin and ICAM-1 over VCAM-1. In an effort to explore the biological mechanism of action of these inhibitors, we synthesized I-125- and H-3-labeled thieno[2,3-c]pyridines 5 and 6. An isolated diazonium tetrafluoroborate salt efficiently trapped (NaI)-I-125 on very small scale (7.5 mug of (NaI)-I-125), providing the corresponding I-125-labeled thieno[2,3-c]pyridine in modest yield. Preliminary mechanistic investigations using these radiolabeled compounds revealed that, upon incubation with human umbilical vein endothelial cells (HUVECs), these inhibitors of CAM expression translocated to the cell nucleus and were noncovalently associated with macromolecules of molecular weight greater than 650 kDa.