2,3-二甲氧基吡啶 | 52605-97-7

• 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 - 有机氧化合物
• 中文名称: 2,3-二甲氧基吡啶
• 英文名称: 2,3-dimethoxypyridine
• 英文别名: 2,3-Dimethoxypyridin
• CAS: 52605-97-7
• 化学式: C₇H₉NO₂
• mdl: MFCD03095043
• 分子量: 139.154
• InChiKey: QHUHPERZCBUMRK-UHFFFAOYSA-N

物化性质

• 熔点：
  121-122 °C
• 沸点：
  98-100°C 16mm
• 密度：
  1,104 g/cm3
• 闪点：
  98-100°C/16mm
• 溶解度：
  可溶于氯仿、乙酸乙酯

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.285
• 拓扑面积：
  31.4
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 安全说明：
  S26,S37
• 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
• 储存条件：
  Refrigerator

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
2,3-Dimethoxypyridine
Product Name:
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
P261: Avoid breathing dust/fume/gas/mist/vapours/spray
Wear protective gloves/protective clothing/eye protection/face protection
P280:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P405: Store locked up

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Section 3. Composition/information on ingredients.
2,3-Dimethoxypyridine
Ingredient name:
CAS number: 52605-97-7

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Section 4. First aid measures
Immediately wash skin with copious amounts of water for at least 15 minutes while removing
Skin contact:
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.
Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
Ingestion:

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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.

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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.

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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.
Storage: Store in closed vessels, refrigerated.

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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.

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Section 9. Physical and chemical properties
Not specified
Appearance:
Boiling point: No data
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C7H9NO2
Molecular weight: 139.2

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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.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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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.

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

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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.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2,3-二甲氧基吡啶 在 1,1'-双(二苯基膦)二茂铁 、 tris-(dibenzylideneacetone)dipalladium(0) 溴 、 sodium acetate 、 锌 作用下， 以 异丁酰胺 、 溶剂黄146 为溶剂， 反应 3.5h， 生成 3-溴-5,6-二甲氧基吡啶-2-甲腈
  参考文献：
  名称：

  [EN] INHIBITORS OF CATECHOL O-METHYL TRANSFERASE AND THEIR USE IN THE TREATMENT OF PSYCHOTIC DISORDERS
  [FR] INHIBITEURS DE CATÉCHOL O-MÉTHYL TRANSFÉRASE ET UTILISATION ASSOCIÉE DANS LE TRAITEMENT DE TROUBLES PSYCHOTIQUES

  摘要：

  本发明涉及一种4-吡啶酮化合物，它们是儿茶酚-O-甲基转移酶(COMT)的抑制剂，并且在涉及COMT酶的神经系统和精神疾病的治疗和预防中具有用途。本发明还涉及包含这些化合物的药物组合物以及这些化合物和组合物在预防或治疗涉及COMT的这些疾病中的用途。

  公开号：

  WO2011109261A1
• 作为产物：
  描述：

  2,3-二氯吡啶 在 sodium methylate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以6%的产率得到2,3-二甲氧基吡啶
  参考文献：
  名称：

  一些卤代吡啶与甲醇盐和甲硫醇盐离子在二甲基甲酰胺中的反应

  摘要：

  2，6-和2，5-二溴吡啶和2，3-和3，5-二氯吡啶与异丙硫醇钠和甲硫醇钠的反应根据实验条件提供单取代或双取代的产物。相同的吡啶与甲醇钠反应，得到良好收率的单取代产物。仅在2,6-二溴-和3,5-二氯吡啶中容易发生双取代。还描述了从卤代甲氧基吡啶或卤代硫代甲氧基吡啶开始的一些甲氧基硫代甲氧基吡啶的合成。双（烷硫基）吡啶可被HMPA中的钠裂解，得到双（巯基）吡啶。

  DOI：

  10.1016/s0040-4020(01)96539-1

文献信息

• D-AMINO ACID OXIDASE INHIBITORS AND THERAPEUTIC USES THEREOF
  申请人：Tsai Guochuan Emil

  公开号：US20190112289A1

  公开（公告）日：2019-04-18

  The present invention relates to compounds of Formula (I): or a pharmaceutically acceptable salt thereof, wherein: each of A, B, C, D, and E, independently, is C, N, N—H, O, S, or absent is a single bond or a double bond; each of X, Y, and Z, independently, is aryl, heteroaryl, aralkyl, H, or absent; each of L 1 and L 2 , independently, is a moiety selected from O, CH 2 , C═O, C 2-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, —((CH 2 ) n —W)—, wherein n=0, 1, 2, 3, 4, or 5, and W is O or S, or absent; and when L 2 is absent, Z is aryl or heteroaryl fused with B C. Also provided in the present invention is a method for inhibiting, treating and/or reducing the risk of a neuropsychiatric disorder, comprising administering a subject in need a composition comprising a compound of Formula (I).

  本发明涉及以下式（I）的化合物： 或其药学上可接受的盐，其中：A、B、C、D 和 E 中的每一个独立地是 C、N、N—H、O、S 或不存在 是单键或双键；X、Y 和 Z 中的每一个独立地是芳基、杂环芳基、芳基烷基、H 或不存在；L 1 和 L 2 中的每一个独立地是从 O、CH 2 、C═O、C 2-10 烷基、C 2-10 烯基、C 2-10 炔基、—((CH 2 ) n —W)— 中选择的基团，其中 n=0、1、2、3、4 或 5，W 是 O 或 S，或不存在；当 L 2 不存在时，Z 是与 B 相融合的芳基或杂环芳基。本发明还提供了一种用于抑制、治疗和/或减少神经精神障碍风险的方法，包括向需要的受试者施用包含式（I）化合物的组合物。
• 一类川陈皮素衍生物或其药学上可接受的盐及其制备方法和应用
  申请人：广东克冠达医药科技有限公司

  公开号：CN110498784B

  公开（公告）日：2022-06-14

  本发明公开了一类川陈皮素衍生物或其药学上可接受的盐及其制备方法和应用。所述川陈皮素衍生物的结构如式(Ⅰ)所示；其中，R1、R2、R3和R4分别选自氢、卤素、羟基、氨基、C1‑6取代或非取代烷氧基、C1‑6取代或非取代酯基、C1‑6取代或非取代烷胺基、C1‑6取代或非取代酰胺基；R5选自C3‑9取代或非取代芳香环、C3‑9取代或非取代芳香杂环；X选自O或NR6。本发明所述川陈皮素衍生物或其药学上可接受的盐结构新颖，且化合物对于P‑gp均表现出优异的抑制作用，可制备成为P‑gp抑制剂进行使用，治疗和/或预防由P‑gp引发的相关疾病，特别是肿瘤耐药相关的疾病；或与其他药物混配使用，作为耐药性逆转剂进行应用，逆转倍数高，可显著性地提高药物的药效。
• New bicyclic compounds as crac channel modulators
  申请人：Almirall, S.A.

  公开号：EP2738172A1

  公开（公告）日：2014-06-04

  The present invention relates to novel compounds which are inhibitors of CRAC channel activity. This invention also relates to pharmaceutical compositions containing them, process for their preparation and their use in therapy.

  这项发明涉及一种新型化合物，它们是CRAC通道活性的抑制剂。该发明还涉及含有这些化合物的药物组合物，它们的制备方法以及它们在治疗中的应用。
• Novel sulfonyldiazomethanes, photoacid generators, resist compositions, and patterning process
  申请人：——

  公开号：US20040167322A1

  公开（公告）日：2004-08-26

  A chemical amplification type resist composition comprising a specific benzenesulfonyldiazomethane containing a long-chain alkoxyl group at the 2-position on benzene ring has many advantages including improved resolution, improved focus latitude, minimized line width variation or shape degradation even on long-term PED, minimized debris left after coating, development and peeling, and improved pattern profile after development and is thus suited for microfabrication.

  一种化学放大型抗蚀组合物，包括在苯环上的2-位含有长链烷氧基基团的特定苯磺酰二氮甲烷，具有许多优点，包括提高分辨率，改善焦点宽度，即使在长期PED上也减少线宽变化或形状退化，涂层、显影和剥离后减少残留物，并在显影后改善图案轮廓，因此适用于微加工。
• [EN] TRPML MODULATORS<br/>[FR] MODULATEURS DE TRPML
  申请人：CASMA THERAPEUTICS INC

  公开号：WO2021127337A1

  公开（公告）日：2021-06-24

  The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.

  本发明提供了化合物、药学上可接受的组合物以及使用这些化合物的方法。

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