盐酸洛非西定 | 21498-08-8

• 物质功能分类: 原料药 - 循环系统用药 - 抗高血压病药
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 盐酸洛非西定
• 中文别名: 2-[1-(2,6-二氯苯氧基)乙基]-2-咪唑啉盐酸盐
• 英文名称: lofexidine hydrochloride
• 英文别名: (-)-2-[1-(2,6-dichlorophenoxy)-ethyl]-1,3-diazacyclopent-2-ene hydrochloride；2-[1-(2,6-dichlorophenoxy)ethyl]-4,5-dihydro-1H-imidazole;hydron;chloride
• CAS: 21498-08-8
• 化学式: C₁₁H₁₂Cl₂N₂O*ClH
• 分子量: 295.596
• InChiKey: DWWHMKBNNNZGHF-UHFFFAOYSA-N

物化性质

• 熔点：
  230-232°C
• 溶解度：
  在水中的溶解度为20mg/mL，澄清

计算性质

• 辛醇/水分配系数(LogP)：
  3.18
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  33.6
• 氢给体数：
  2
• 氢受体数：
  2

安全信息

• 危险等级：
  6.1
• 危险品标志：
  T
• 安全说明：
  S45
• 危险类别码：
  R25
• WGK Germany：
  3
• 海关编码：
  2933290090
• 危险标志：
  GHS06
• 危险性描述：
  H301
• 危险性防范说明：
  P301 + P310
• 储存条件：
  -20°C 冰箱

SDS

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SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : Lofexidine hydrochloride
REACH No. : A registration number is not available for this substance as the substance
or its uses are exempted from registration, the annual tonnage does not
require a registration or the registration is envisaged for a later
registration deadline.
CAS-No. : 21498-08-8
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

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SECTION 2: Hazards identification
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Acute toxicity, Oral (Category 3), H301
For the full text of the H-Statements mentioned in this Section, see Section 16.
Classification according to EU Directives 67/548/EEC or 1999/45/EC
T Toxic R25
For the full text of the R-phrases mentioned in this Section, see Section 16.
Label elements
Labelling according Regulation (EC) No 1272/2008
Pictogram
Signal word Danger
Hazard statement(s)
H301 Toxic if swallowed.
Precautionary statement(s)
P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/
physician.
Supplemental Hazard none
Statements
Other hazards - none

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SECTION 3: Composition/information on ingredients
Substances
Synonyms : 2-[1-(2,6-dichlorophenoxy)ethyl]-4,5-dihydro-1H-imidazole hydrochloride;
Baq 168; Britlofex; Lofetensin; Loxacor; MDL 14042
Formula : C11H12Cl2N2O. HCl
Molecular Weight : 295,59 g/mol
CAS-No. : 21498-08-8
Hazardous ingredients according to Regulation (EC) No 1272/2008
Component Classification Concentration
Lofexidine hydrochloride
CAS-No. 21498-08-8 Acute Tox. 3; H301 <= 100 %
Hazardous ingredients according to Directive 1999/45/EC
Component Classification Concentration
Lofexidine hydrochloride
CAS-No. 21498-08-8 T, R25 <= 100 %
For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

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SECTION 4: First aid measures
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
section 11
Indication of any immediate medical attention and special treatment needed
no data available

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SECTION 5: Firefighting measures
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
no data available
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

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SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Wear respiratory protection. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure
adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
For personal protection see section 8.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

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SECTION 7: Handling and storage
Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Recommended storage temperature: 2 - 8 °C
Store with desiccant.
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

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SECTION 8: Exposure controls/personal protection
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling
the product.
Personal protective equipment
Eye/face protection
Face shield and safety glasses Use equipment for eye protection tested and approved under
appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
Complete suit protecting against chemicals, The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
respirator type N99 (US) or type P2 (EN 143) respirator cartridges as a backup to engineering
controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
respirators and components tested and approved under appropriate government standards such
as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.

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SECTION 9: Physical and chemical properties
Information on basic physical and chemical properties
a) Appearance Form: solid
b) Odour no data available
c) Odour Threshold no data available
d) pH no data available
e) Melting point/freezing no data available
point
f) Initial boiling point and no data available
boiling range
g) Flash point no data available
h) Evapouration rate no data available
i) Flammability (solid, gas) no data available
j) Upper/lower no data available
flammability or
explosive limits
k) Vapour pressure no data available
l) Vapour density no data available
m) Relative density no data available
n) Water solubility no data available
o) Partition coefficient: n- no data available
octanol/water
p) Auto-ignition no data available
temperature
q) Decomposition no data available
temperature
r) Viscosity no data available
s) Explosive properties no data available
t) Oxidizing properties no data available
Other safety information
no data available

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SECTION 10: Stability and reactivity
Reactivity
no data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available
In the event of fire: see section 5

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SECTION 11: Toxicological information
Information on toxicological effects
Acute toxicity
LD50 Oral - rat - 70 mg/kg
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitisation
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Additional Information
RTECS: Not available
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.

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SECTION 12: Ecological information
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
Other adverse effects
no data available

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SECTION 13: Disposal considerations
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging
Dispose of as unused product.

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SECTION 14: Transport information
UN number
ADR/RID: 2811 IMDG: 2811 IATA: 2811
UN proper shipping name
ADR/RID: TOXIC SOLID, ORGANIC, N.O.S. (Lofexidine hydrochloride)
IMDG: TOXIC SOLID, ORGANIC, N.O.S. (Lofexidine hydrochloride)
IATA: Toxic solid, organic, n.o.s. (Lofexidine hydrochloride)
Transport hazard class(es)
ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1
Packaging group
ADR/RID: III IMDG: III IATA: III
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
no data available

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SECTION 15: Regulatory information
This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.
Safety, health and environmental regulations/legislation specific for the substance or mixture
no data available
Chemical Safety Assessment
For this product a chemical safety assessment was not carried out

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SECTION 16: Other information
Full text of H-Statements referred to under sections 2 and 3.
Acute Tox. Acute toxicity
H301 Toxic if swallowed.
Full text of R-phrases referred to under sections 2 and 3
T Toxic
R25 Toxic if swallowed.
Further information
Copyright 2014 Co. LLC. License granted to make unlimited paper copies for internal use
only.
The above information is believed to be correct but does not purport to be all inclusive and shall be
used only as a guide. The information in this document is based on the present state of our knowledge
and is applicable to the product with regard to appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Corporation and its Affiliates shall not be held
liable for any damage resulting from handling or from contact with the above product. See
and/or the reverse side of invoice or packing slip for additional terms and conditions of sale.

制备方法与用途

盐酸洛非西定是一种咪唑啉类衍生物，与可乐定在结构和作用上相似，它选择性地激活中枢α2受体，降低外周交感神经活性，抑制去甲肾上腺素释放，并松弛血管平滑肌，从而产生降压作用。

生物活性 洛非西定（盐酸形式）是一种选择性的α2受体激动剂，常用于缓解海洛因和其他阿片类药物戒断时的躯体症状。

用途 抗高血压药。

反应信息

• 作为反应物：
  描述：

  D-(+)-二对甲基苯甲酰酒石酸 、 盐酸洛非西定 以 乙醇 为溶剂， 以87%的产率得到(+/-)-lofexidine di-p-toluoyl-D-tartarate
  参考文献：
  名称：

  [EN] LOFEXIDINE ENANTIOMERS FOR USE AS A TREATMENT FOR CNS DISEASE AND PATHOLOGIES AND ITS CHIRAL SYNTHESIS
  [FR] ÉNANTIOMÈRES DE LOFEXIDINE EN VUE D'UNE UTILISATION EN TANT QUE TRAITEMENT DE MALADIE ET DE PATHOLOGIES DU SYSTÈME NERVEUX CENTRAL ET SA SYNTHÈSE CHIRALE

  摘要：

  该发明涉及使用非外消旋混合物的洛非西定对中枢神经系统疾病和病理的治疗方法。该发明还涉及制备洛非西定的对映纯异构体的工艺。

  公开号：

  WO2010016844A1
• 作为产物：
  描述：

  洛非西定 在 盐酸 作用下， 以 异丙醇 为溶剂， 生成 盐酸洛非西定
  参考文献：
  名称：

  一种简单、方便、安全的盐酸洛非西定合成工艺

  摘要：

  提出了一种非常有效、经济且易于扩展的合成盐酸洛非西丁 ( 1 ) 的方法，该方法是一种用于治疗阿片类药物戒断的 α2-肾上腺素能受体激动剂。工艺开发允许从 2-(2,6-二氯苯氧基)丙酸乙酯 ( 13 ) 和乙二胺 ( 5 ) 在异丙醇钛的作用下，通过一锅酰胺化/咪唑啉成环反应制备盐酸洛非西丁 ( 1 ) . 所需的中间体2-(2,6-二氯苯氧基)丙酸乙酯( 13 )可以通过2-氯丙酸乙酯( 12 )对2,6-二氯苯酚( 2 )的O-烷基化反应得到。) 使用碳酸钾作为酸清除剂。

  DOI：

  10.1021/acs.oprd.0c00453

文献信息

• 2-IMIDAZOLINES
  申请人：Galley Guido

  公开号：US20090018180A1

  公开（公告）日：2009-01-15

  The present invention relates to compounds of formula I wherein X—Y, R 1 , and n are as defined herein and to their pharmaceutically active salts. Compounds of formula I have a good affinity to the trace amine associated receptors (TAARs), especially for TAAR1 and are useful for the treatment of depression, anxiety disorders, bipolar disorder, attention deficit hyperactivity disorder (ADHD), stress-related disorders, psychotic disorders such as schizophrenia, neurological diseases such as Parkinson's disease, neurodegenerative disorders such as Alzheimer's disease, epilepsy, migraine, hypertension, substance abuse and metabolic disorders such as eating disorders, diabetes, diabetic complications, obesity, dyslipidemia, disorders of energy consumption and assimilation, disorders and malfunction of body temperature homeostasis, disorders of sleep and circadian rhythm, and cardiovascular disorders.

  本发明涉及式I的化合物，其中X—Y、R1和n如本文所定义，并且涉及它们的药用活性盐。式I的化合物对痕量胺相关受体（TAARs）具有良好的亲和力，特别是对TAAR1，适用于治疗抑郁症、焦虑障碍、双相情感障碍、注意力缺陷多动障碍（ADHD）、与压力有关的障碍、精神分裂症等精神障碍、帕金森病等神经系统疾病、阿尔茨海默病等神经退行性疾病、癫痫、偏头痛、高血压、物质滥用以及代谢性障碍，如进食障碍、糖尿病、糖尿病并发症、肥胖症、血脂异常、能量消耗和吸收障碍、体温稳态障碍、睡眠和昼夜节律障碍，以及心血管疾病。
• [EN] POLYMERIC HYPERBRANCHED CARRIER-LINKED PRODRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À DES EXCIPIENTS POLYMÉRIQUES HYPERBRANCHÉS
  申请人：ASCENDIS PHARMA AS

  公开号：WO2013024048A1

  公开（公告）日：2013-02-21

  The present invention relates to water-soluble carrier-linked prodrugs of formula (I),wherein POL is a polymeric moiety,each Hyp is independently a hyperbranched moiety,each moiety SP is independently a spacer moiety, each L is independently a reversible prodrug linker moiety, m is 0 or 1, each n is independently an integer from 2 to 200 and each x is independently 0 or 1. It further relates to pharmaceutical compositions comprising said water- soluble carrier-linked prodrugs and methods of treatment.

  本发明涉及水溶性载体连接的前药，其化学式为（I），其中POL是聚合物基团，每个Hyp是独立的超支化基团，每个基团SP是独立的间隔基团，每个L是独立的可逆前药连接基团，m为0或1，每个n是独立的整数，范围从2到200，每个x是独立的0或1。此外，还涉及包含所述水溶性载体连接的前药的药物组合物和治疗方法。
• [EN] PRODRUG COMPOSITIONS AND METHODS OF TREATMENT<br/>[FR] COMPOSITIONS DE PROMÉDICAMENT ET PROCÉDÉS DE TRAITEMENT
  申请人：AQUESTIVE THERAPEUTICS INC

  公开号：WO2021087359A1

  公开（公告）日：2021-05-06

  Pharmaceutical compositions include a prodrug of epinephrine are described.

  药物组合物包括表述的肾上腺素前药。
• Multi-functional ionic liquid compositions for overcoming polymorphism and imparting improved properties for active pharmaceutical, biological, nutritional, and energetic ingredients
  申请人：Rogers D. Robin

  公开号：US20070093462A1

  公开（公告）日：2007-04-26

  Disclosed are ionic liquids and methods of preparing ionic liquid compositions of active pharmaceutical, biological, nutritional, and energetic ingredients. Also disclosed are methods of using the compositions described herein to overcome polymorphism, overcome solubility and delivery problems, to control release rates, add functionality, enhance efficacy (synergy), and improve ease of use and manufacture.

  揭示了离子液体及制备活性药物、生物、营养和能量成分的离子液体组合物的方法。还揭示了利用本文描述的组合物的方法，以克服多型性、克服溶解度和输送问题、控制释放速率、增加功能性、增强功效（协同作用）以及改善易用性和制造工艺。
• [EN] HIGH-LOADING WATER-SOLUBLE CARRIER-LINKED PRODRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À DES EXCIPIENTS HYDROSOLUBLES DE FORTE CHARGE
  申请人：ASCENDIS PHARMA AS

  公开号：WO2013024047A1

  公开（公告）日：2013-02-21

  The present invention relates to water-soluble carrier-linked prodrugs of formula (I), wherein B, A and Hyp form the carrier, B is a branching core, each A is independently a poly(ethylene glycol)-based polymeric chain, each Hyp is independently a branched moiety, each SP is independently a spacer moiety, each L is independently a reversible prodrug linker moiety, each D is independendly a biologically active moiety, each x is independently 0 or 1, each m is independently an integer of from 2 to 64, n is an integer from 3 to 32; or the pharmaceutically acceptable salt thereof. It further relates to pharmaceutical compositions comprising said water-soluble carrier-linked prodrugs, their use asmedicament or diagnostic, and methods of treatment.

  本发明涉及水溶性载体连接的前药，其化学式为(I)，其中B、A和Hyp形成载体，B是一个分支核心，每个A独立地是一条聚乙二醇基聚合链，每个Hyp独立地是一个分支基团，每个SP独立地是一个间隔基团，每个L独立地是一个可逆前药连接基团，每个D独立地是一个生物活性基团，每个x独立地为0或1，每个m独立地是从2到64的整数，n是从3到32的整数；或其药学上可接受的盐。进一步涉及包括所述水溶性载体连接的前药的药物组合物，其用作药物或诊断，以及治疗方法。