3-甲基-4-硝基吡唑 | 5334-39-4

• 物质功能分类: 生物化工 - 抑制剂 - 蛋白酶体(Proteases)
• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 烯丙基型1,3-偶极有机化合物
• 中文名称: 3-甲基-4-硝基吡唑
• 英文名称: 3-methyl-4-nitro-1H-pyrazole
• 英文别名: 3-methyl-4-nitropyrazole；3-Methyl-4-nitropyrazol；5-methyl-4-nitro-1H-pyrazole
• CAS: 5334-39-4
• 化学式: C₄H₅N₃O₂
• mdl: MFCD00037864
• 分子量: 127.103
• InChiKey: WTZYTQJELOHMMJ-UHFFFAOYSA-N

物化性质

• 熔点：
  131-134℃
• 沸点：
  325℃
• 密度：
  1.426±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  74.5
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2933199090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  | 室温 |

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
3-Methyl-4-nitro-1H-pyrazole
Product Name:
Synonyms: 5-Methyl-4-nitro-1H-pyrazole

---

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

---

Section 3. Composition/information on ingredients.
3-Methyl-4-nitro-1H-pyrazole
Ingredient name:
CAS number: 5334-39-4

---

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:

---

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.
Storage: Store in closed vessels.

---

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
Not specified
Appearance:
Boiling point: No data
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C4H5N3O2
Molecular weight: 127.1

---

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

用途

3-甲基-4-硝基吡唑是一种反应物，用于制备氨基吡唑衍生物，并作为强效、选择性和脑渗透性的富亮氨酸重复激酶2（LRRK2）小分子抑制剂。

反应信息

• 作为反应物：
  描述：

  3-甲基-4-硝基吡唑 在 亚硝酸特丁酯 、 ammonium cerium (IV) nitrate 、 氧气 作用下， 以 乙腈 为溶剂， 反应 16.0h， 以92%的产率得到3-甲基-1,4-二硝基吡唑
  参考文献：
  名称：

  从N-H硝化到可控芳烃单硝化和二硝化——多功能高效N-硝基吡唑硝化试剂的发现

  摘要：

  硝基芳烃是非常有价值的有机化合物，长期以来被用作药物、农用化学品和炸药以及多种化学品的重要中间体。因此，芳香硝化的探索已成为学术界和工业界的一项重要工作。在此，我们报告了从N使用实用的 N-H 硝化方法构建的硝基型试剂库。这种硝化试剂可作为硝鎓离子的可控来源，能够对具有良好官能团耐受性的多种（杂）芳烃进行温和且可扩展的硝化。值得注意的是，我们的硝化方法可以通过操纵反应条件来控制，以选择性地提供单硝化或二硝化产物。这种方法在药物化学中的价值已经通过其对复杂生物相关分子的高效后期 C-H 硝化而得到了很好的证实。密度泛函理论 (DFT) 计算和初步机理研究表明，这种硝化试剂的强大功能和多功能性是由于协同的“硝基效应”和“甲基效应”。

  DOI：

  10.1021/jacsau.2c00413
• 作为产物：
  描述：

  3-甲基吡唑 在 silica-sulfuric acid impregnated with bismuth nitrate 作用下， 以 四氢呋喃 为溶剂， 反应 6.0h， 以96%的产率得到3-甲基-4-硝基吡唑
  参考文献：
  名称：

  硝酸铋浸渍法简单，环境友好地硝化吡唑

  摘要：

  我们在这里首次报道了室温下使用二氧化硅-硝酸铋和二氧化硅-硫酸-硝酸铋以高收率轻松，快速，环保地合成硝基吡唑的方法。相对无毒的性质，易于处理，易于获得以及成本低廉，使得本方法对于制药和制药行业中各种二唑的硝化具有吸引力。

  DOI：

  10.1002/jhet.1093

文献信息

• [EN] INHIBITORS<br/>[FR] INHIBITEURS
  申请人：BIONOMICS LTD

  公开号：WO2015123722A1

  公开（公告）日：2015-08-27

  This invention relates to compounds of the formula (I):The invention also relates to processes for the preparation of the compound of the formula (I), pharmaceutical agents or compositions containing the compound or a method of using the compound for the treatment of proliferative diseases, such as cancer.

  这项发明涉及式(I)的化合物。该发明还涉及制备式(I)化合物的方法，含有该化合物的药物或组合物，或者使用该化合物治疗增殖性疾病，如癌症的方法。
• PURINE DERIVATIVES
  申请人：PFIZER INC.

  公开号：US20150141402A1

  公开（公告）日：2015-05-21

  The present invention relates to compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein Q, G, ring A, ring B, R 1 , R 2 , R 3 , R 4 , R 5 , R 5a , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , R 21 , R 22 , R 23 , R 24 , and m are defined herein. The novel purine derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. Additional embodiments relate to pharmaceutical compositions containing the compounds and to methods of using the compounds and compositions in the treatment of abnormal cell growth in mammals.

  本发明涉及式(I)的化合物或其药用盐，其中Q、G、环A、环B、R1、R2、R3、R4、R5、R5a、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15、R16、R17、R18、R19、R20、R21、R22、R23、R24和m在此定义。这些新颖的嘌呤衍生物在治疗哺乳动物中的异常细胞生长，如癌症方面具有用途。另外，还涉及含有这些化合物的药物组合物，以及在治疗哺乳动物中的异常细胞生长方面使用这些化合物和组合物的方法。
• COMPOUNDS AND USES THEREOF
  申请人：Yumanity Therapeutics, Inc.

  公开号：US20190330198A1

  公开（公告）日：2019-10-31

  The present invention features compounds useful in the treatment of neurological disorders. The compounds of the invention, alone or in combination with other pharmaceutically active agents, can be used for treating or preventing neurological disorders.

  本发明涉及用于治疗神经系统疾病的化合物。本发明的化合物可以单独或与其他药用活性剂结合使用，用于治疗或预防神经系统疾病。
• [EN] COMPOUND, COMPOSITIONS, AND METHODS<br/>[FR] COMPOSÉS, COMPOSITIONS, ET PROCÉDÉS
  申请人：DENALI THERAPEUTICS INC

  公开号：WO2017087905A1

  公开（公告）日：2017-05-26

  Compounds having activity as LRRK2 inhibitors are disclosed. The compounds are of formula (I) including stereoisomers, tautomers, pharmaceutically acceptable salts and prodrugs thereof. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.

  披露了具有LRRK2抑制剂活性的化合物。这些化合物具有公式(I)，包括立体异构体、互变异构体、药物可接受的盐和前药。还披露了与这些化合物的制备和使用相关的方法，以及包含这些化合物的药物组合物。
• Identification and Optimization of the First Highly Selective GLUT1 Inhibitor BAY-876
  作者：Holger Siebeneicher、Arwed Cleve、Hartmut Rehwinkel、Roland Neuhaus、Iring Heisler、Thomas Müller、Marcus Bauser、Bernd Buchmann

  DOI：10.1002/cmdc.201600276

  日期：2016.10.19

  these transporters should not be addressed by such an inhibitor. A high-throughput screen against a library of ∼3 million compounds was performed to find a small molecule with this challenging potency and selectivity profile. The N-(1H-pyrazol-4-yl)quinoline-4-carboxamides were identified as an excellent starting point for further compound optimization. After extensive structure-activity relationship explorations

  尽管众所周知的事实是，即使在正常的氧气供应条件下，促进性葡萄糖转运蛋白GLUT1仍是保证许多肿瘤实体葡萄糖消耗增加的关键因素之一（被称为Warburg效应），但仅进行了很少的努力寻找一种GLUT1选择性小分子抑制剂。由于GLUT1家族的其他转运蛋白都参与关键过程，因此此类抑制剂不应解决这些转运蛋白。针对约300万种化合物的库进行了高通量筛选，以发现具有这种具有挑战性的效能和选择性的小分子。N-（1H-吡唑-4-基）喹啉-4-羧酰胺被确定为进一步优化化合物的理想起点。经过广泛的构效关系探索后，获得了对GLUT2，GLUT3和GLUT4的选择性因子> 100的个位数纳摩尔抑制剂。最有前途的化合物BAY-876 [N4- [1-（4-氰基苄基）-5-甲基-3-（三氟甲基）-1H-吡唑-4-基] -7-氟喹啉-2,4-二甲酰胺]在体外具有良好的代谢稳定性，在体内具有较高的口服生物利用度。

表征谱图