3,4-二甲基-5-溴吡啶 | 27063-98-5

• 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: 3,4-二甲基-5-溴吡啶
• 中文别名: 3-溴-4,5-二甲基吡啶
• 英文名称: 3-bromo-4,5-dimethylpyridine
• CAS: 27063-98-5
• 化学式: C₇H₈BrN
• 分子量: 186.051
• InChiKey: WWNHLCQMASFRBX-UHFFFAOYSA-N

物化性质

• 熔点：
  33-34 °C
• 沸点：
  38 °C(Press: 40 Torr)
• 密度：
  1.415±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2933399090
• 危险性防范说明：
  P280,P305+P351+P338,P310
• 危险性描述：
  H302,H315,H319,H332,H335
• 储存条件：
  室温且干燥环境下

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3-Bromo-4,5-dimethylpyridine
Synonyms:

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

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Section 3. Composition/information on ingredients.
Ingredient name: 3-Bromo-4,5-dimethylpyridine
CAS number: 27063-98-5

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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.

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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.
Store in closed vessels, refrigerated.
Storage:

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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
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C7H8BrN
Molecular weight: 186.1

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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, hydrogen bromide.

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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：

  3,4-二甲基-5-溴吡啶 在 selenium(IV) oxide 、 锌 作用下， 以 四氢呋喃 、 二甲基亚砜 为溶剂， 反应 3.5h， 生成 3-bromo-5-methyl-4-(but-3'-en-1'-ol)pyridine
  参考文献：
  名称：

  （±）-act啶的短合成

  摘要：

  单吡啶生物碱（±）-act啶10由3,4-二甲基吡啶经吡啶自由基环化以形成环戊烷[c]吡啶骨架的5个步骤制备。

  DOI：

  10.1016/s0040-4020(97)10437-9
• 作为产物：
  描述：

  3,4-二甲基吡啶 在 硫酸 、 溴 作用下， 生成 3,4-二甲基-5-溴吡啶
  参考文献：
  名称：

  A Short Synthesis of the Plant Alkaloid 4-Methyl-2,6-naphthyridine

  摘要：

  从紫罗兰属植物Antirrhinum majus中合成了2,6-萘啶生物碱4-甲基-2,6-萘啶的新合成路线。关键步骤是选择性氧化3-溴-4,5-二甲基吡啶制备相应的4-醛衍生物，以及使用（E）-2-乙氧基乙烯基硼酸针酯作为掩蔽乙醛等效物的Suzuki-Miyaura交叉偶联反应来进行第二个吡啶环的环化。这一方案从商业上可得的3,4-二甲基吡啶出发，经过四个步骤，总收率为15％。这种环化方案也可用于合成其他紧缩吡啶。

  DOI：

  10.2174/1570178616666181116110647

文献信息

• [EN] ALDOSTERONE SYNTHASE INHIBITORS<br/>[FR] INHIBITEURS D'ALDOSTÉRONE SYNTHASE
  申请人：MERCK SHARP & DOHME

  公开号：WO2012148808A1

  公开（公告）日：2012-11-01

  This invention relates to tricyclic triazole analogues of the formula I or their pharmaceutically acceptable salts, wherein the variable are defined herein. The inventive compounds selectively inhibit aldosterone synthetase. This invention also provides for pharmaceutical compositions comprising the compounds of Formula I or their salts as well as to methods for the treatment, amelioration or prevention of conditions that could be treated by inhibiting aldosterone synthetase.

  本发明涉及式I的三环三唑类似物或其药用可接受的盐，其中变量如本文所述定义。本发明的化合物选择性地抑制醛固酮合成酶。本发明还提供了包含式I化合物或其盐的药物组合物，以及用于治疗、改善或预防可以通过抑制醛固酮合成酶来治疗的疾病的方法。
• Compounds and their use as BACE Inhibitors
  申请人：Csjernyik Gabor

  公开号：US20120165347A1

  公开（公告）日：2012-06-28

  The present invention relates to compounds of formula (I) and their pharmaceutical compositions. In addition, the present invention relates to therapeutic methods for the treatment and/or prevention of Aβ-related pathologies such as Down's syndrome, β-amyloid angiopathy such as but not limited to cerebral amyloid angiopathy or hereditary cerebral hemorrhage, disorders associated with cognitive impairment such as but not limited to MCI (“mild cognitive impairment”), Alzheimer's disease, memory loss, attention deficit symptoms associated with Alzheimer's disease, neurodegeneration associated with diseases such as Alzheimer's disease or dementia including dementia of mixed vascular and degenerative origin, pre-senile dementia, senile dementia and dementia associated with Parkinson's disease, progressive supranuclear palsy or cortical basal degeneration.

  本发明涉及式(I)的化合物及其药物组合物。此外，本发明涉及治疗方法，用于治疗和/或预防与Aβ相关的病理，如唐氏综合症，β-淀粉样蛋白血管病，如但不限于脑淀粉样蛋白血管病或遗传性脑出血，与认知损害相关的疾病，如但不限于MCI（“轻度认知损害”），阿尔茨海默病，记忆丧失，与阿尔茨海默病相关的注意力缺陷症状，与疾病如阿尔茨海默病或痴呆症相关的神经退行性疾病，包括混合性血管性和退行性起源的痴呆，早老性痴呆，老年性痴呆和与帕金森病、进行性上核性麻痹或皮层基底节变性相关的痴呆。
• [EN] HETEROCYCLIC COMPOUNDS AS EP4 RECEPTOR ANTAGONISTS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES UTILISÉS EN TANT QU'ANTAGONISTES DES RÉCEPTEURS CCR4
  申请人：TAKEDA PHARMACEUTICAL

  公开号：WO2016021742A1

  公开（公告）日：2016-02-11

  The present invention provides a compound represented by the formula (1) : wherein each symbol is as defined in the specification or a salt thereof has an EP4 receptor antagonistic action, and is useful as an agent for the prophylaxis or treatment of EP4 receptor associated diseases (e.g., rheumatoid arthritis, aortic aneurysm, endometriosis, ankylosing spondylitis, inflammatory breast cancer etc.) and the like.

  本发明提供了一种化合物，其化学式表示为（1）：其中每个符号如规范中定义或其盐具有EP4受体拮抗作用，并且可用作预防或治疗与EP4受体相关疾病（例如类风湿性关节炎、主动脉瘤、子宫内膜异位症、强直性脊柱炎、炎性乳腺癌等）等的药剂。
• Indazole compounds, pharmaceutical compositions, and methods for mediating or inhibiting cell proliferation
  申请人：——

  公开号：US20020161022A1

  公开（公告）日：2002-10-31

  Indazole compounds that modulate and/or inhibit cell proliferation, such as the activity of protein kinases are described. These compounds and pharmaceutical compositions containing them are capable of mediating, e.g., kinases-dependent diseases to modulate and/or inhibit unwanted cell proliferation. The invention is also directed to the therapeutic or prophylactic use of pharmaceutical compositions containing such compounds, and to methods of treating cancer as well as other disease states associated with unwanted angiogenesis and/or cellular proliferation, such as diabetic retinopathy, neovascular glaucoma, rheumatoid arthritis, and psoriasis, by administering effective amounts of such compounds.

  描述了调节和/或抑制细胞增殖的吲唑化合物，例如蛋白激酶活性。这些化合物和含有它们的药物组合物能够介导，例如，依赖激酶的疾病，以调节和/或抑制不需要的细胞增殖。该发明还涉及含有这些化合物的药物组合物的治疗或预防用途，以及通过给予这些化合物的有效量来治疗癌症以及与不需要的血管生成和/或细胞增殖相关的其他疾病状态，如糖尿病视网膜病变、新生血管性青光眼、类风湿性关节炎和牛皮癣的方法。
• [EN] INDOLIN-2-ONE OR PYRROLO-PYRIDIN-2-ONE DERIVATIVES<br/>[FR] DÉRIVÉS D'INDOLIN-2-ONE OU DE PYRROLOPYRIDIN-2-ONE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2015197567A1

  公开（公告）日：2015-12-30

  The present invention is concerned with 2-oxo-2,3-dihydro-indoles of general formula (I) wherein Ar1 is phenyl or a five or six membered heteroaryl group, containing one, two or three heteroatoms, selected from N, S or O, wherein the N-heteroatom in the heteroaryl group may be oxidized to N+-(O-); R1 is lower alkyl, halogen, cyano or cycloalkyl; Ar2 is a five or six membered heteroaryl group, containing one, two, three or four heteroatoms, selected from N, S or O, wherein the N-heteroatom in the heteroaryl group may be oxidized to N+-(O-), or is benzo[b]thiophenyl; R2 is hydrogen, lower alkyl, halogen, cyano, lower alkyl substituted by hydroxyl, lower alkyl substituted by halogen, lower alkyl substituted by amino, lower alkyl substituted by alkoxy, lower alkyl substituted by amide, or is cycloalkyl; X is CH or N; n is 1 or 2; m is 1 or 2; as well as with a pharmaceutically acceptable salt thereof, with a racemic mixture, or with its corresponding enantiomer and/or optical isomer and/or stereoisomer thereof. The compounds may be used in the treatment of CNS diseases related to positive (psychosis) and negative symptoms of schizophrenia, substance abuse, alcohol and drug addiction, obsessive-compulsive disorders, cognitive impairment, bipolar disorders, mood disorders, major depression, treatment resistant depression, anxiety disorders, Alzheimer's disease, autism, Parkinson's disease, chronic pain, borderline personality disorder, neurodegenerative disease, sleep disturbances, chronic fatigue syndrome, stiffness, inflammatory disease, asthma, Huntington's disease, ADHD, amyotrophic lateral sclerosis, epilepsy, effects in arthritis, autoimmune disease, viral and fungal infections, cardiovascular diseases, ophthalmology and inflammatory retinal diseases and balance problems.

  本发明涉及一般式（I）的2-氧代-2,3-二氢吲哚，其中Ar1为苯基或含有一个、两个或三个异原子（N、S或O）的五元或六元杂环芳基，其中杂环芳基中的N-异原子可以被氧化为N+-(O-)；R1为低碳基、卤素、氰基或环烷基；Ar2为含有一个、两个、三个或四个异原子（N、S或O）的五元或六元杂环芳基，其中杂环芳基中的N-异原子可以被氧化为N+-(O-)，或者为苯并[ｂ]噻吩基；R2为氢、低碳基、卤素、氰基、被羟基取代的低碳基、被卤素取代的低碳基、被氨基取代的低碳基、被烷氧基取代的低碳基、被酰胺取代的低碳基，或者为环烷基；X为CH或N；n为1或2；m为1或2；以及其药学上可接受的盐、消旋体混合物、或其对映体和/或光学异构体和/或立体异构体。这些化合物可用于治疗与精神病（精神病）、精神分裂症的阳性和阴性症状、物质滥用、酒精和药物成瘾、强迫症、认知障碍、躁郁症、情感障碍、重度抑郁症、治疗难治性抑郁症、焦虑障碍、阿尔茨海默病、自闭症、帕金森病、慢性疼痛、边缘人格障碍、神经退行性疾病、睡眠障碍、慢性疲劳综合征、僵硬、炎症性疾病、哮喘、亨廷顿病、注意力缺陷多动障碍、肌萎缩侧索硬化症、癫痫、关节炎作用、自身免疫疾病、病毒和真菌感染、心血管疾病、眼科学和炎症性视网膜疾病以及平衡问题相关的中枢神经系统疾病的治疗。