4,6-二羟基烟酸乙酯 | 6975-44-6

• 物质功能分类: 医药中间体 - 杂环化合物 - 吡啶类化合物
• 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: 4,6-二羟基烟酸乙酯
• 英文名称: 4,6-dihydroxynicotinic acid ethyl ester
• 英文别名: ethyl 4,6-dihydroxynicotinate；ethyl 4-hydroxy-6-oxo-1H-pyridine-3-carboxylate
• CAS: 6975-44-6
• 化学式: C₈H₉NO₄
• mdl: MFCD00834976
• 分子量: 183.164
• InChiKey: QDHHLXABEXNRJX-UHFFFAOYSA-N

物化性质

• 熔点：
  214-217°
• 沸点：
  339.4±42.0 °C(Predicted)
• 密度：
  1.380

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  13
• 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：
  75.6
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 危险等级：
  IRRITANT
• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R36/37/38
• 海关编码：
  2933399090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
Product Name: Ethyl 4,6-dihydroxynicotinate
Synonyms:

---

Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

---

Section 3. Composition/information on ingredients.
Ingredient name: Ethyl 4,6-dihydroxynicotinate
CAS number: 6975-44-6

---

Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

---

Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

---

Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

---

Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

---

Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

---

Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C8H9NO4
Molecular weight: 183.2

---

Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

---

Section 11. Toxicological information
No data.

---

Section 12. Ecological information
No data.

---

Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

---

Section 14. Transportation information
Non-harzardous for air and ground transportation.

---

Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

概述

4,6-二羟基烟酸乙酯是一种有机化合物，可用作医药化工合成的中间体。

制备方法

将1,3-丙酮二羧酸二乙酯（160g，0.79mol）、原甲酸三乙酯（129g，0.87mol）和乙酸酐（161g，1.58mol）依次加入2L烧瓶中。在120℃下加热混合物1.5小时后，将其冷却至室温，并在真空条件下除去挥发物。随后，在冰浴中将残余物冷却，并加入30%氨水（65mL）。反应混合物在0℃下搅拌1小时后，用2N盐酸酸化至pH值小于5。最后，通过真空浓缩去除多余的液体。使用硅胶色谱法（洗脱液为1:1己烷/乙酸乙酯）纯化粗残余物，从而得到4,6-二羟基烟酸乙酯。

反应信息

• 作为反应物：
  描述：

  4,6-二羟基烟酸乙酯 在 manganese(IV) oxide 、 lithium aluminium tetrahydride 、 40% potassium fluoride/alumina 、 三乙胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二氯甲烷 、 N,N-二甲基乙酰胺 、 水 、 乙腈 为溶剂， 反应 101.0h， 生成 瑞普替尼
  参考文献：
  名称：

  [EN] DIHYDRONAPHTHYRIDINES AND RELATED COMPOUNDS USEFUL AS KINASE INHIBITORS FOR THE TREATMENT OF PROLIFERATIVE DISEASES
  [FR] DIHYDRONAPHTYRIDINES ET COMPOSÉS APPARENTÉS UTILES COMME INHIBITEURS DE KINASES POUR LE TRAITEMENT DE MALADIES PROLIFÉRATIVES

  摘要：

  该发明涉及二氢萘啶并相关化合物；包含有效量二氢萘啶或相关化合物的组合物；以及治疗或预防增生性疾病的方法，包括给予有效量二氢萘啶或相关化合物。本发明揭示了抑制cKIT激酶的化合物在广泛范围内对c-KIT突变具有意想不到的功效，包括抑制原发性突变（KIT外显子9或11）和次级KIT突变（外显子13、14、17和18）的复杂发生，这些可能出现在个体、难治性GIST患者身上。同样令人意想不到的是本发明的化合物对抑制目前没有有效治疗的问题性外显子17 D816V c-KIT突变的功效。

  公开号：

  WO2013184119A1
• 作为产物：
  描述：

  1,3-丙酮二羧酸二乙酯 在 乙酸酐 、 原甲酸三乙酯 、 ammonium hydroxide 作用下， 反应 3.25h， 以72%的产率得到4,6-二羟基烟酸乙酯
  参考文献：
  名称：

  1,6-Naphthyridin-2(1H)-ones 通过顺序一锅 Suzuki-Miyaura 交叉偶联的差异功能化

  摘要：

  7-chloro-3-iodo-1-methyl-1,6-naphthyridin-2(1H)-one 的实际合成描述了从 2-chloro-4-(methylamino)nicotinaldehyde 开始。然后二卤化合物经历顺序的、位点选择性的 Suzuki-Miyaura 交叉偶联反应，以良好的收率提供高度官能化的 1,6-萘啶酮。

  DOI：

  10.1002/ejoc.201301631

文献信息

• [EN] HETEROCYCLIC UREA COMPOUNDS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES D'URÉE
  申请人：BIOTA EUROPE LTD

  公开号：WO2013091011A1

  公开（公告）日：2013-06-27

  The present invention provides a compound of the following formula, racemates, enantiomers and salts thereof. Also provided is the use of these compounds as antibacterials, compositions comprising them and processes for their manufacture.

  本发明提供了以下式的化合物，它们的外消旋体、对映体和盐。还提供了这些化合物作为抗菌剂的用途，包括它们的组合物和制造过程。
• [EN] HETEROCYCLIC COMPOUNDS AND COMPOSITIONS AS C-KIT AND PDGFR KINASE INHIBITORS<br/>[FR] COMPOSÉS ET COMPOSITIONS HÉTÉROCYCLIQUES COMME INHIBITEURS DE C-KIT ET PDGFR KINASE
  申请人：IRM LLC

  公开号：WO2009105712A1

  公开（公告）日：2009-08-27

  The invention provides a novel class of compounds of Formula I: (I) pharmaceutical compositions comprising such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly diseases or disorders that involve abnormal activation of c-kit, PDGFRα and PDGFRβ kinases.

  这项发明提供了一类新型的化合物，其化学式为：(I) 制备包含这类化合物的药物组合物，用于治疗或预防与异常或失调的激酶活性相关的疾病或紊乱，特别是涉及c-kit、PDGFRα和PDGFRβ激酶异常活化的疾病或紊乱。
• Heterocyclic inhibitors of MEK and methods of use thereof
  申请人：Wallace Eli

  公开号：US20050049419A1

  公开（公告）日：2005-03-03

  Disclosed are compounds of the Formula I and pharmaceutically acceptable salts and prodrugs thereof, wherein R 1 , R 2 , R 7 , R 8 , R 9 and R 10 , W and Y are as defined in the specification. Such compounds are MEK inhibitors and useful in the treatment of hyperproliferative diseases, such as cancer and inflammation, in mammals. Also disclosed are methods of using such compounds in the treatment of hyperproliferative diseases in mammals and pharmaceutical compositions containing such compounds.

  本发明涉及具有式I的化合物及其药用可接受的盐和前药，其中R1、R2、R7、R8、R9和R10、W和Y如规范中所定义。这些化合物是MEK抑制剂，在哺乳动物中用于治疗高增殖性疾病，如癌症和炎症。还公开了在哺乳动物中使用这些化合物治疗高增殖性疾病的方法以及含有这些化合物的药物组合物。
• [EN] NEW MACROLIDES AND THEIR USE<br/>[FR] NOUVEAUX MACROLIDES ET LEUR UTILISATION
  申请人：BASILEA PHARMACEUTICA AG

  公开号：WO2009106419A1

  公开（公告）日：2009-09-03

  The invention relates to macrolide compounds of formula (I),the use of said compounds as medicaments, in particular for the treatment or prevention of inflammatory and allergic diseases, pharmaceutical compositions containing said compounds and to processes for their preparation. The invention relates in particular to macrolide compounds with anti-inflammatory activity mediated primarily through inhibition of phosphodiesterase 4 (PDE4) which makes them useful for the treatment and/or prevention of inflammatory and allergic diseases such as chronic obstructive pulmonary disease (COPD), asthma, rheumatoid arthritis, atopic dermatitis or inflammatory bowel disease or proliferative diseases such as cancer.

  本发明涉及公式(I)的大环内酯化合物，以及所述化合物作为药物的应用，特别是用于治疗或预防炎性和过敏性疾病，包含所述化合物的药物组合物，以及它们的制备过程。本发明特别涉及主要通过抑制磷酸二酯酶4（PDE4）介导抗炎活性的大环内酯化合物，这使得它们可用于治疗和/或预防诸如慢性阻塞性肺病（COPD）、哮喘、类风湿性关节炎、特应性皮炎、炎症性肠病或增殖性疾病，例如癌症等炎性和过敏性疾病。
• Cyclic compounds
  申请人：——

  公开号：US20040142930A1

  公开（公告）日：2004-07-22

  1. A cyclic compound of the formula (I) or a pharmacologically acceptable salt thereof, 1 wherein X is ═CH— or ═N—, Y is —NH—, —NR 4 —, —S—, —O—, —CH═N—, —N═CH—, —N═N—, —CH═CH—, etc., R 1 is a lower alkoxy group, an amino group, a heterocyclic ring containing N atom(s), or a hydroxy group substituted by a heterocyclic ring containing N atom(s) (each of which is optionally substituted), R 2 is a lower alkylamino group which is optionally substituted by an aryl group, a lower alkoxy group which is optionally substituted by an aryl group, a lower alkoxy group substituted by an aromatic heterocyclic ring containing N atom(s), R 3 is an aryl group, a heterocyclic ring containing N atom(s), a lower alkyl group, a lower alkoxy group, a cyclo lower alkoxy group, a hydroxy group substituted by a heterocyclic ring containing N atom(s), or an amino group (each of which is optionally substituted), and R 3 and a substituent in Y may be combined to form a lactone ring. The compound of the present invention has excellent selective PDE V inhibitory activity and therefore, is useful as a therapeutic or prophylactic drug for treating various diseases due to functional disorders on cGMP-signaling.

  化合物的公式（I）或其药理学上可接受的盐，其中X为═CH—或═N—，Y为—NH—，—NR4—，—S—，—O—，—CH═N—，—N═CH—，—N═N—，—CH═CH—等，R1为较低的烷氧基，氨基，含N原子的杂环环，或者由含N原子的杂环环取代的羟基（每个都可以取代），R2为较低的烷基氨基基，可以由芳基取代，较低的烷氧基，可以由芳基取代，由含N原子的芳基取代的较低的烷氧基，R3为芳基，含N原子的杂环环，较低的烷基，较低的烷氧基，环状较低的烷氧基，由含N原子的杂环环取代的羟基，或者氨基（每个都可以取代），R3和Y中的取代基可以结合形成内酯环。本发明的化合物具有优异的选择性PDE V抑制活性，因此，可用作治疗或预防因cGMP信号传导功能障碍引起的各种疾病的药物。