4,4-二氟哌啶 | 21987-29-1

• 物质功能分类: 医药中间体 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 4,4-二氟哌啶
• 英文名称: 4,4-difluoropiperidine
• CAS: 21987-29-1
• 化学式: C₅H₉F₂N
• mdl: MFCD03094281
• 分子量: 121.13
• InChiKey: MJOUJKDTBGXKIU-UHFFFAOYSA-N

物化性质

• 沸点：
  34°C 12mm
• 密度：
  1.08±0.1 g/cm3(Predicted)
• 溶解度：
  可溶于氯仿（少许）、DMSO（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  12
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 安全说明：
  S16,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,P280,P305+P351+P338
• 危险性描述：
  H302+H312+H332,H315,H319,H335
• 储存条件：
  2-8°C

SDS

Material Safety Data Sheet

---

Section 1. Identification of the substance
Product Name: 4,4-Difluoropiperidine
Synonyms:

---

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

---

Section 3. Composition/information on ingredients.
Ingredient name: 4,4-Difluoropiperidine
CAS number: 21987-29-1

---

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, refrigerated.
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: C5H9F2N
Molecular weight: 121.1

---

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, hydrogen fluoride.

---

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

反应信息

• 作为反应物：
  描述：

  4,4-二氟哌啶 在 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 (R)-quinuclidin-3-yl 2-(4,4-difluoropiperidin-1-yl)-2-phenylacetate
  参考文献：
  名称：

  QUINUCLIDINE ESTERS OF 1-AZAHETEROCYCLYLACETIC ACID AS ANTIMUSCARINIC AGENTS, PROCESS FOR THEIR PREPARATION AND MEDICINAL COMPOSITIONS THEREOF

  摘要：

  式(I)化合物： 其中A、R1、R2、X、m和n如说明书中所定义，是选择性的M3受体拮抗剂，可用于治疗，包括但不限于，呼吸系统疾病，如哮喘和慢性阻塞性肺病(COPD)。

  公开号：

  US20130172302A1
• 作为产物：
  描述：

  N-(2-苯乙基)-4-哌啶酮 在 甲醇 、 三乙胺 、 4,4'-二氨基二苯乙烯-2,2'-二磺酸 作用下， 以 二氯甲烷 为溶剂， 生成 4,4-二氟哌啶
  参考文献：
  名称：

  Estrogen receptor ligands. Part 8: Dihydrobenzoxathiin SERAMs with heteroatom-substituted side chains

  摘要：

  A series of benzoxathiin SERAMs with heteroatom-substituted amine side chains was prepared. Minor modifications in the side chain resulted in significant effects on biological activity, especially in uterine tissue. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2004.05.073

文献信息

• Discovery of triazolo [1,5-a] pyridine derivatives as novel JAK1/2 inhibitors
  作者：Kuan Lu、Weibin Wu、Cunlong Zhang、Zijian Liu、Boren Xiao、Zigao Yuan、Anqi Li、Dawei Chen、Xin Zhai、Yuyang Jiang

  DOI：10.1016/j.bmcl.2020.127225

  日期：2020.7

  demonstrated efficacy in rheumatoid arthritis, inflammatory bowel disease, and psoriasis with the approval of several drugs. Aiming to develop potent JAK1/2 inhibitors, two series of triazolo [1,5-a] pyridine derivatives were designed and synthesized by various strategies. The pharmacological results identified the optimized compounds J-4 and J-6, which exerted high potency against JAK1/2, and selectivity

  在多种药物的批准下，小分子JAK抑制剂已被证明在类风湿性关节炎，炎症性肠病和牛皮癣中有效。为了开发有效的JAK1 / 2抑制剂，通过各种策略设计并合成了两个系列的三唑并[1,5- a ]吡啶衍生物。药理结果确定了优化的化合物J-4和J-6，它们对JAK1 / 2具有很高的效力，并且在酶法测定中具有优于JAK3的选择性。此外，J-4和J-6可有效抑制JAK1 / 2高表达BaF3细胞的增殖，并具有可接受的肝微粒体代谢稳定性。因此，J-4和J-6 可能作为有希望的JAK1 / 2抑制剂有待进一步研究。
• [EN] CATHEPSIN CYSTEINE PROTEASE INHIBITORS<br/>[FR] INHIBITEURS DE PROTÉASES À CYSTÉINE DE TYPE CATHEPSINES
  申请人：MERCK SHARP & DOHME

  公开号：WO2015054038A1

  公开（公告）日：2015-04-16

  This invention relates to a novel class of compounds which are cysteine protease inhibitors, including but not limited to, inhibitors of cathepsins K, L, S and B. These compounds are useful for treating diseases in which inhibition of bone resorption is indicated, such as osteoporosis.

  这项发明涉及一类新型化合物，它们是半胱氨酸蛋白酶抑制剂，包括但不限于对卡特普辛K、L、S和B的抑制剂。这些化合物可用于治疗需要抑制骨吸收的疾病，如骨质疏松症。
• [EN] PYRIMIDO[5,4-d]PYRIMIDINE DERIVATIVES AS ENT INHIBITORS FOR THE TREATMENT OF CANCERS, AND COMBINATION THEREOF WITH ADENOSINE RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE PYRIMIDO[5,4-D]PYRIMIDINE SERVANT D'INHIBITEURS D'ENT POUR LE TRAITEMENT DE CANCERS, ET LEUR COMBINAISON AVEC DES ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE
  申请人：ITEOS BELGIUM SA

  公开号：WO2021170797A1

  公开（公告）日：2021-09-02

  The present invention relates to pyrimido[5,4-d]pyrimidine derivatives of formula (I), including pharmaceutically acceptable salts and solvates thereof. Compounds of the invention are inhibitors of ENT family transporter, especially of ENT1, and are useful as therapeutic compounds for the treatment of cancers. The invention also relates to the combined use of the pyrimido[5,4-d]pyrimidine derivatives with an adenosine receptor antagonist, for the treatment of cancers.

  本发明涉及式(I)的嘧啶并[5,4-d]嘧啶衍生物，包括其药用可接受盐和溶剂化合物。本发明的化合物是ENT家族转运蛋白的抑制剂，特别是ENT1的抑制剂，并且可用作治疗癌症的治疗化合物。该发明还涉及将嘧啶并[5,4-d]嘧啶衍生物与腺苷受体拮抗剂联合使用，用于治疗癌症。
• Discovery and Development of <i>N</i>-[4-(1-Cyclobutylpiperidin-4-yloxy)phenyl]-2-(morpholin-4-yl)acetamide Dihydrochloride (SUVN-G3031): A Novel, Potent, Selective, and Orally Active Histamine H₃ Receptor Inverse Agonist with Robust Wake-Promoting Activity
  作者：Ramakrishna Nirogi、Anil Shinde、Abdul Rasheed Mohammed、Rajesh Kumar Badange、Veena Reballi、Thrinath Reddy Bandyala、Sangram Keshari Saraf、Kumar Bojja、Sravanthi Manchineella、Pramod Kumar Achanta、Kiran Kumar Kandukuri、Ramkumar Subramanian、Vijay Benade、Raghava Choudary Palacharla、Pradeep Jayarajan、Santoshkumar Pandey、Venkat Jasti

  DOI：10.1021/acs.jmedchem.8b01280

  日期：2019.2.14

  histamine H3 receptor (H3R), physicochemical properties, and pharmacokinetics in rats resulted in identification of N-[4-(1-cyclobutyl-piperidin-4-yloxy)phenyl]-2-(morpholin-4-yl)acetamide dihydrochloride (17v, SUVN-G3031) as a clinical candidate. Compound 17v is a potent (hH3R Ki = 8.73 nM) inverse agonist at H3R with selectivity over other 70 targets, Compound 17v has adequate oral exposures and

  在大鼠中对组胺H3受体（H3R）的体外亲和力，理化性质和药代动力学指导下的一系列化学优化导致鉴定了N- [4-（1-环丁基-哌啶丁-4-基氧基）苯基] -2 -（吗啉-4-基）乙酰胺二盐酸盐（17v，SUVN-G3031）作为临床候选药物。化合物17v在H3R上是一种强效（hH3R Ki = 8.73 nM）反向激动剂，对其他70个靶标具有选择性。化合物17v在大鼠和狗中均具有足够的口服暴露量和良好的消除半衰期。它显示出高的受体占有率和明显的促醒作用，并减少了Orexin-B萨泊林损伤的大鼠的快速眼动睡眠，支持了其在治疗人类睡眠障碍中的潜在治疗作用。剂量比有效剂量高出几倍，对运动活性没有影响。它没有hERG和磷脂病的问题。已经成功完成了对动物的安全性，耐受性和药代动力学的第一阶段评估，以及对动物的长期安全性研究，而无需担心进一步的开发。
• Parallel Solution-Phase Synthesis and General Biological Activity of a Uridine Antibiotic Analog Library
  作者：Omar Moukha-chafiq、Robert C. Reynolds

  DOI：10.1021/co4001452

  日期：2014.5.12

  coupling of the amino terminus of d-phenylalanine methyl ester to the free 5′-carboxylic acid moiety of 33 followed by sodium hydroxide treatment led to carboxylic acid analog 77. Hydrolysis of this material gave analog 78. The intermediate 77 served as the precursor for the preparation of novel dipeptidyl uridine analogs 79–99 through peptide coupling reactions to diverse amine reactants. None of the described

  在 NIH 路线图计划的中试规模库 (PSL) 计划下，以溶液相方式从胺2和羧酸33和77合成了一个包含 94 种尿苷抗生素类似物的小型库。多样醛，磺酰氯，和羧酸反应物套缩合，2，酸介导的水解导致后，向目标化合物3 - 32以良好的收率和高的纯度。同样，用不同的胺和磺胺处理33得到34 – 75。d氨基末端的偶联-苯丙氨酸甲酯到33的游离 5'-羧酸部分，然后用氢氧化钠处理产生羧酸类似物77。该材料的水解得到类似物78。中间77担任该前体为二肽基新颖尿苷类似物的制备79 - 99通过肽偶联到不同的胺反应剂反应。所描述的化合物均未显示出显着的抗癌或抗疟活性。通过 NIH MLPCN 计划提供和报告的初级筛选中的酶和受体，许多样品表现出各种有希望的抑制性、激动剂、拮抗剂或激活剂特性。