5-氯-2,3-二甲氧基吡啶 | 284040-73-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 5-氯-2,3-二甲氧基吡啶
• 中文别名: 5-氯-2.3-二甲氧基吡啶盐酸盐
• 英文名称: 5-chloro-1,2-dimethoxypyridine
• 英文别名: 5-chloro-2,3-dimethoxypyridine
• CAS: 284040-73-9
• 化学式: C₇H₈ClNO₂
• mdl: MFCD09972187
• 分子量: 173.599
• InChiKey: ZIWLHIOCWSARHW-UHFFFAOYSA-N

物化性质

• 沸点：
  208.9±35.0 °C(Predicted)
• 密度：
  1.217±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  11
• 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
• WGK Germany：
  3
• 海关编码：
  2933399090

SDS

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SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : 5-Chloro-2,3-Dimethoxypyridine
: ADE000172
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.

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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 4), H302
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
Xn Harmful R22
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 Warning
Hazard statement(s)
Harmful if swallowed.
Precautionary statement(s) none
Supplemental Hazard none
Statements
Other hazards
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

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SECTION 3: Composition/information on ingredients
Substances
Molecular weight : 173,6 g/mol
Hazardous ingredients according to Regulation (EC) No 1272/2008
Component Classification Concentration
5-Chloro-2,3-Dimethoxypyridine
Acute Tox. 4; H302 <= 100 %
Hazardous ingredients according to Directive 1999/45/EC
Component Classification Concentration
5-Chloro-2,3-Dimethoxypyridine
Xn, R22 <= 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. 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
Nature of decomposition products not known.
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
Further information
No data available

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SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure
adequate ventilation. Avoid breathing dust.
For personal protection see section 8.
Environmental precautions
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.
Storage class (TRGS 510): Non Combustible Solids
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
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and
at the end of workday.
Personal protective equipment
Eye/face protection
Safety glasses with side-shields conforming to EN166 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
For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher
level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges.
Use respirators and components tested and approved under appropriate government standards
such as NIOSH (US) or CEN (EU).
Control of environmental exposure
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) Evaporation 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
In the event of fire: see section 5

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SECTION 11: Toxicological information
Information on toxicological effects
Acute toxicity
No data available
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
This substance/mixture contains no components considered to be either persistent, bioaccumulative and
toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
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: - IMDG: - IATA: -
UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
Packaging group
ADR/RID: - IMDG: - IATA: -
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

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  5-氯-2,3-二甲氧基吡啶 在 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 正丁基锂 、 三氟化硼乙醚 、 三溴化硼 、 sodium carbonate 、 caesium carbonate 、 乙硫醇 、 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 29.17h， 生成 5-biphenyl-3-yl-4-fluoro-3-hydroxy-1-methylpyridin-2(1H)-one
  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：

  2,3,5-三氯吡啶 、 sodium methylate 以 二甲基亚砜 为溶剂， 反应 2.0h， 以83%的产率得到5-氯-2,3-二甲氧基吡啶
  参考文献：
  名称：

  Novel Potent Ligands for the Central Nicotinic Acetylcholine Receptor:  Synthesis, Receptor Binding, and 3D-QSAR Analysis

  摘要：

  In the past few years the focus on central acetylcholine receptors has shifted from compounds with affinity for muscarinic acetylcholine receptors (mAChR) to compounds with affinity for nicotinic acetylcholine receptors (nAChR). The therapeutic potential includes treatment of a variety of diseases, e.g., Alzheimer's disease, Parkinson's disease, and Tourette's syndrome. This work describes the synthesis of six novel series of potent ligands with nanomolar affinity for the alpha 4 beta 2 nAChR subtype. Structure-activity relationship (SAR) was evaluated by the calculation of a 3D-QSAR model. 3D-QSAR analysis of the compounds using the GRID/GOLPE methodology resulted in a model of high quality (R-2 = 0.97, Q(2) = 0.81). The coefficient plots reveal that the steric interactions between the target and our compounds are of major importance for the affinity. Bulky substituents in the B-position of the pyridine ring will reduce the affinity of the compounds, whereas bulky ring systems including a sp(3)-nitrogen will increase the affinity of the compounds.

  DOI：

  10.1021/jm990973d

文献信息

• Mild and Highly Selective Palladium-Catalyzed Monoarylation of Ammonia Enabled by the Use of Bulky Biarylphosphine Ligands and Palladacycle Precatalysts
  作者：Chi Wai Cheung、David S. Surry、Stephen L. Buchwald

  DOI：10.1021/ol401612c

  日期：2013.7.19

  A method for the Pd-catalyzed arylation of ammonia with a wide range of aryl and heteroaryl halides, including challenging five-membered heterocyclic substrates, is described. Excellent selectivity for monoarylation of ammonia to primary arylamines was achieved under mild conditions or at rt by the use of bulky biarylphosphine ligands (L6, L7, and L4) as well as their corresponding aminobiphenyl palladacycle

  描述了一种 Pd 催化的氨与多种芳基和杂芳基卤化物的芳基化方法，包括具有挑战性的五元杂环底物。通过使用庞大的联芳膦配体（L6、L7和L4）及其相应的氨基联苯钯环预催化剂（3a、3b和3c），在温和条件下或在室温下实现了将氨单芳基化成伯芳胺的出色选择性。由于该过程既不需要使用手套箱，也不需要高压氨，因此应广泛适用。
• Heteroaryl diazacycloalkanes, their preparation and use;
  申请人：Neurosearch A/S

  公开号：US20040072823A1

  公开（公告）日：2004-04-15

  The present invention discloses compounds of the formula 1 any of its enantiomers or any mixture thereof, isotopes thereof or a pharmaceutically acceptable salt thereof; wherein n is 1, 2 or 3; m is 0, 1 or 2; R represents hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, or aralkyl; and R 1 represents aminophenyl; nitrophenyl; hydroxyphenyl, alkoxyphenyl; a monocyclic 5 to 6 membered heterocyclic group which may be substituted one or more times with substituents selected from the group consisting of alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino, nitro, —COOR 3 , —CONR 2 R 3 , —NH—CO 2 R 2 , NHCO—R 2 , —OCO—NR 2 R 3 ; wherein R 2 and R 3 independently represents hydrogen or alkyl; aryl optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; —X-alkyl-Y-alkyl wherein X and Y independently represents O, S, NH, N-alkyl or Se; and alkyl is optionally substituted with alkoxy or thioalkoxy; —X-(alkyl) o -aryl wherein o is 0 or 1 and X represents O, S, NH, N-alkyl or Se; optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; —X-(alkyl) o -Z wherein o is 0 or 1 and X represents O, S, NH, N-alkyl or Se and Z represents a 5- or 6-membered monocyclic heterocyclic group; optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; a monocyclic 5 to 6 membered heterocyclic group optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; or or R 1 represents a bicyclic heterocyclic group, composed of a 5 to 6 membered monocyclic heterocyclic group fused to a benzene ring, and which may be substituted one or more times with substituents selected from the group consisting of alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, alkoxy-alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino, nitro, aryl optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; and a monocyclic 5 to 6 membered heterocyclic group optionally substituted one or more times with alkyl, cycloalkyl, cycloalkylalkyl alkenyl, alkynyl, alkoxy, cycloalkoxy, alkenoxy, alkynoxy, methylenedioxy, halogen, CF 3 , OCF 3 , CN, amino and nitro; The compounds of the invention are useful as nicotinic ACh receptor ligands.

  本发明公开了以下式化合物的任一对映异构体或其混合物，同位素或其药学上可接受的盐；其中n为1、2或3；m为0、1或2；R代表氢、烷基、环烷基、环烷基烷基或芳基；以及R1代表氨基苯基；硝基苯基；羟基苯基、烷氧基苯基；一种单环5到6成员杂环基团，该基团可以被取代一次或多次，取代基选自烷基、环烷基、环烷基烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、烷氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基、硝基、—COOR3、—CONR2R3、—NH—CO2R2、NHCO—R2、—OCO—NR2R3；其中R2和R3独立地代表氢或烷基；芳基可选择地被烷基、环烷基、环烷基烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；—X-烷基-Y-烷基，其中X和Y独立地代表O、S、NH、N-烷基或Se；烷基可选择地被烷氧基或硫代烷氧基取代；—X-(烷基)o-芳基，其中o为0或1，X代表O、S、NH、N-烷基或Se；可选择地被烷基、环烷基、环烷基烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；—X-(烷基)o-Z，其中o为0或1，X代表O、S、NH、N-烷基或Se，Z代表一个5-或6-成员单环杂环基团；可选择地被烷基、环烷基、环烷基烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；一种单环5到6成员杂环基团，可选择地被烷基、环烷基、环烷基烷基、烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；或者R1代表一个双环杂环基团，由一个5到6成员单环杂环基团与苯环融合而成，可选择地被烷基、环烷基、环烷基烷基烯基、炔基、烷氧基、烷氧基-烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基、硝基、芳基可选择地被烷基、环烷基、环烷基烷基烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；以及一种单环5到6成员杂环基团，可选择地被烷基、环烷基、环烷基烷基烯基、炔基、烷氧基、环烷氧基、烯氧基、炔氧基、亚甲二氧基、卤素、CF3、OCF3、CN、氨基和硝基取代一次或多次；本发明的化合物可用作尼古丁ACh受体配体。
• [EN] HETEROARYL DIAZACYCLOALKANES AS CHOLINERGIC LIGANDS AT NICOTINIC ACETYLCHOLINE RECEPTORS<br/>[FR] DIAZACYCLOALCANES D'HETERO-ARYLE UTILISES EN TANT QUE LIGANDS CHOLINERGIQUES DES RECEPTEURS NICOTINIQUES DE L'ACETYLCHOLINE
  申请人：NEUROSEARCH A/S

  公开号：WO1999021834A1

  公开（公告）日：1999-05-06

  (EN) The present invention discloses compounds of formula (I) any of its enantiomers or any mixture thereof, isotopes thereof or a pharmaceutically acceptable salt thereof; wherein n is 1, 2 or 3; m is 0, 1 or 2; R represents hydrogen, alkyl, cycloalkyl, cycloalkylalkyl or aralkyl; and R1 represents aminophenyl; nitrophenyl; hydroxyphenyl, alkoxyphenyl; a monocyclic 5 to 6 membered heterocyclic group which may be substituted one or more times with substituents or R1 represents a bicyclic heterocyclic group, composed of 5 to 6 membered monocyclic heterocyclic group fused to a benzene ring, and which may be substituted one or more times with substituents. The compounds of the invention are useful as nicotinic ACh receptor ligands.(FR) La présente invention se rapporte à des composés représentés par la formule (I), à tous les énantiomères de ces composés ou à un mélange de ces derniers, à des isotopes de ces composés ou à un de leurs sels pharmaceutiquement acceptables. Dans la formule (I), n est égal à 1, 2 ou 3; m est égal à 0, 1 ou 2; R représente l'hydrogène, un alkyle, un cycloalkyle, un cycloalkylalkyle ou un aralkyle et R1 représente un aminophényle, un nitrophényle, un hydroxyphényle, un alcoxyphényle, un groupe hétérocyclique monocyclique à 5 ou 6 éléments qui peut être substitué une ou plusieurs fois par des substituants ou R1 représente un groupe hétérocyclique bicyclique composé d'un groupe hétérocyclique monocyclique à 5 ou 6 éléments fusionné avec un noyau benzène, et qui peut être substitué une ou plusieurs fois par des substituants. Les composés de cette invention s'avèrent utiles en tant que ligands des récepteurs nicotiniques de l'acétylcholine (ACh).

  本发明揭示了公式（I）的化合物及其任何对映体或其混合物，同位素或其药学上可接受的盐；其中n为1、2或3；m为0、1或2；R代表氢、烷基、环烷基、环烷基烷基或芳基烷基；R1代表氨基苯基、硝基苯基、羟基苯基、烷氧基苯基、一个由5到6个成员的单环杂环基团，该基团可以被1个或多个取代基取代，或R1代表由5到6个成员的单环杂环基团与苯环融合而成的双环杂环基团，该基团可以被1个或多个取代基取代。本发明的化合物可用作尼古丁ACh受体配体。
• INHIBITORS OF CATECHOL O-METHYL TRANSFERASE AND THEIR USE IN THE TREATMENT OF PSYCHOTIC DISORDERS
  申请人：Wolkenberg Scott

  公开号：US20130005744A1

  公开（公告）日：2013-01-03

  The present invention relates to 4-pyridinone compounds which are inhibitors of catechol O-methyltransferase (COMT), and are useful in the treatment and prevention of neurological and psychiatric disorders and diseases in which COMT enzyme is involved. The present invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which COMT is involved.

  本发明涉及4-吡啶酮类化合物，它们是儿茶酚-O-甲基转移酶（COMT）的抑制剂，可用于治疗和预防神经和精神障碍以及COMT酶参与的疾病。本发明还涉及包含这些化合物的制药组合物以及这些化合物和组合物在预防或治疗COMT参与的疾病中的使用。
• Inhibitors of catechol O-methyl transferase and their use in the treatment of psychotic disorders
  申请人：Wolkenberg Scott

  公开号：US09309199B2

  公开（公告）日：2016-04-12

  The present invention relates to 4-pyridinone compounds which are inhibitors of catechol O-methyltransferase (COMT), and are useful in the treatment and prevention of neurological and psychiatric disorders and diseases in which COMT enzyme is involved. The present invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which COMT is involved.

  本发明涉及4-吡啶酮类化合物，它们是儿茶酚-O-甲基转移酶（COMT）的抑制剂，并且在治疗和预防涉及COMT酶的神经和精神障碍和疾病方面非常有用。本发明还涉及包含这些化合物的制药组合物以及在预防或治疗涉及COMT的这种疾病中使用这些化合物和组合物的用途。