5-氯烟酸乙酯 | 20825-98-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 5-氯烟酸乙酯
• 英文名称: Ethyl-5-chlornicotinat
• 英文别名: 5-Chlor-nicotinsaeure-ethylester；5-chloro-nicotinic acid ethyl ester；Ethyl 5-chloronicotinate；ethyl 5-chloropyridine-3-carboxylate
• CAS: 20825-98-3
• 化学式: C₈H₈ClNO₂
• mdl: MFCD01692171
• 分子量: 185.61
• InChiKey: NPPHNBKRBUSDQB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2933399090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H317,H319
• 储存条件：
  室温

反应信息

• 作为反应物：
  描述：

  5-氯烟酸乙酯 在 吡啶 、 sodium carbonate 、 一水合肼 作用下， 以 乙二醇 为溶剂， 反应 3.17h， 生成 5-氯吡啶-3-甲醛
  参考文献：
  名称：

  Acrylamide derivatives as antiallergic agents. 2. Synthesis and structure activity relationships of N-[4-[4-(diphenylmethyl)-1-piperazinyl]butyl]-3-(3-pyridyl)acrylamides

  摘要：

  A new series of 3-(3-pyridyl)acrylamides 16, 17, 19, and 26, and 5-(3-pyridyl)-2,4-pentadienamides 20-25 were prepared and evaluated for their antiallergic activity. Several of these compounds exhibited more potent inhibitory activities than the parent compound 1a [(E)-N-[4-[4-(diphenylmethyl)-1-piperazinyl]butyl]-3- (3-pyridyl)acrylamide] against the rat passive cutaneous anaphylaxis (PCA) reaction and the enzyme 5-lipoxygenase. Particularly, (E)-N-[4-[4-(diphenylmethyl)-1-piperazinyl]butyl]-3- (6-methyl-3-pyridyl)acrylamide (17p) showed an ED50 value of 3.3 mg/kg po in the rat PCA test, which was one-fifth of ketotifen and oxatomide. As compared with ketotifen and oxatomide, compound 17p (AL-3264) possessed a better balance of antiallergic properties due to inhibition of chemical mediator release, inhibition of 5-lipoxygenase, and antagonism of histamine.

  DOI：

  10.1021/jm00123a012
• 作为产物：
  描述：

  3,5-二氯吡啶 、 一氧化碳 以35%的产率得到
  参考文献：
  名称：

  HEAD, R. A., TETRAHEDRON LETT., 1984, 25, N 51, 5939-5942

  摘要：

  DOI：

文献信息

• [EN] PYRROLOPYRIDAZINE DERIVATIVES<br/>[FR] DERIVES DE PYRROLOPYRIDAZINE
  申请人：FUJISAWA PHARMACEUTICAL CO

  公开号：WO2004063197A1

  公开（公告）日：2004-07-29

  The invention relates to compound of the formula (I) or its salt, in which R1, R2, R3 and R4 are as defined in the description, their use of as medicament, the process for their preparation and use for the treatment of PDE-IV or TNF-α mediated diseases.

  这项发明涉及公式（I）的化合物或其盐，其中R1、R2、R3和R4如描述中所定义，它们作为药物的用途，它们的制备过程以及用于治疗PDE-IV或TNF-α介导的疾病的用途。
• [EN] [1,2,4]TRIAZOLO[1,5-C]QUINAZOLIN-5-AMINES<br/>[FR] [1,2,4]TRIAZOLO[1,5-C]QUINAZOLIN-5-AMINES
  申请人：BAYER AG

  公开号：WO2021028382A1

  公开（公告）日：2021-02-18

  The present invention covers [1,2,4]triazolo[1,5-c]quinazolin-5-amine compounds of general formula (I) in which R1, R2, R3, R4, R5, R6, R7 and R8 are as defined herein, methods of preparing said compounds, intermediate compounds useful for preparing said compounds, pharmaceutical compositions and combinations comprising said compounds and the use of said compounds for manufacturing pharmaceutical compositions for the treatment or prophylaxis of diseases, in particular of cancer or conditions with dysregulated immune responses or other disorders associated with aberrant AHR signaling, as a sole agent or in combination with other active ingredients.

  本发明涵盖了通式（I）中R1、R2、R3、R4、R5、R6、R7和R8如所定义的[1,2,4]三唑并[1,5-c]喹唑啉-5-胺化合物，以及制备所述化合物的方法，用于制备所述化合物的有用中间体化合物，包含所述化合物的药物组合物和组合物，以及利用所述化合物制造用于治疗或预防疾病的药物组合物，特别是癌症或与异常AHR信号传导相关的疾病，或与失调免疫反应或其他与异常AHR信号传导相关的疾病有关的情况，作为唯一药剂或与其他活性成分组合使用。
• COMPOUNDS
  申请人：Alemparte-Gallardo Carlos

  公开号：US20090306089A1

  公开（公告）日：2009-12-10

  Compounds of Formula (I) or pharmaceutically acceptable salts or N-oxides thereof: (relative chemistry shown) pharmaceutical compositions comprising them, their use in therapy especially against tuberculosis, and methods of preparing them are described.

  公式(I)的化合物或其药用可接受的盐或N-氧化物，(相对化学显示)包含它们的药物组合物，它们在治疗中的用途特别是针对结核病，以及制备它们的方法被描述。
• <i>gem</i> ‐Difluoroallylation of Aryl Halides and Pseudo Halides with Difluoroallylboron Reagents in High Regioselectivity
  作者：Shu Sakamoto、Trevor W. Butcher、Jonathan L. Yang、John F. Hartwig

  DOI：10.1002/anie.202111476

  日期：2021.12

  coupling of a difluoroallylboronate with aryl and heteroaryl halides and triflates provides a convenient and broadly applicable synthesis of difluoroallylarenes. The difluoroallyl boron reagent is formed by a copper-catalyzed defluorinative borylation of the inexpensive reagent 3,3,3-trifluoropropene, and the products undergo a wide range of reactions to a series of difluoro-substituted analogs of common

  二氟烯丙基硼酸酯与芳基和杂芳基卤化物和三氟甲磺酸酯的偶联提供了方便且广泛适用的二氟烯丙基芳烃的合成。二氟烯丙基硼试剂是通过铜催化的廉价试剂 3,3,3-三氟丙烯的脱氟硼基化形成的，并且产物经历广泛的反应，形成一系列常见的具有生物价值的结构单元的二氟取代的类似物。
• Palladium catalysed synthesis of and heterocyclic esters
  作者：Robert A. Head、Arthur Ibbotson

  DOI：10.1016/s0040-4039(01)81726-3

  日期：1984.1

  Palladium catalysed alkoxycarbonylation of heterocyclic halides affords a simple and versatile synthesis of both N and S heterocyclic esters where a range of catalysts have been studied and a method to employ inexpensive inorganic bases has been found.

  钯催化的杂环卤化物的烷氧基羰基化提供了N和S杂环酯的简单而通用的合成，其中已研究了多种催化剂，并找到了使用廉价无机碱的方法。