3-氨基-4,5-二甲基异噁唑 | 13999-39-8

• 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 - 亚胺内酰胺
• 中文名称: 3-氨基-4,5-二甲基异噁唑
• 中文别名: 3-氨基-4,5-二甲基异恶唑；3-氨基-4,5-二甲基异噻唑
• 英文名称: 4,5-dimethyl-1,2-oxazol-3-amine
• 英文别名: 4,5-dimethylisoxazol-3-amine；3-amino-4,5-dimethylisoxazole；3-Amino-4,5-dimethylisoxazol
• CAS: 13999-39-8
• 化学式: C₅H₈N₂O
• 分子量: 112.131
• InChiKey: VPANVNSDJSUFEF-UHFFFAOYSA-N

物化性质

• 熔点：
  115-117 °C
• 沸点：
  250.0±35.0 °C(Predicted)
• 密度：
  1.118±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  52
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 危险品标志：
  Xi
• 危险类别码：
  R22
• 海关编码：
  2934999090
• WGK Germany：
  3
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302
• 储存条件：
  2-8°C

SDS

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SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : 4,5-Dimethylisoxazol-3-amine
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. : 13999-39-8
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 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)
H302 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
Formula : C3 N H10
CAS-No. : 13999-39-8
Hazardous ingredients according to Regulation (EC) No 1272/2008
Component Classification Concentration
4,5-Dimethylisoxazol-3-amine
CAS-No. 13999-39-8 Acute Tox. 4; H302 <= 100 %
Hazardous ingredients according to Directive 1999/45/EC
Component Classification Concentration
4,5-Dimethylisoxazol-3-amine
CAS-No. 13999-39-8 Xn, 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
Carbon oxides, Nitrogen oxides (NOx)
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
No data available
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
The preceding data, or interpretation of data, was determined using Quantitative Structure Activity
Relationship (QSAR) modeling.
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

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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

---

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.

---

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
For this product a chemical safety assessment was not carried out

---

SECTION 16: Other information
Full text of H-Statements referred to under sections 2 and 3.
Acute Tox. Acute toxicity
H302 Harmful if swallowed.
Full text of R-phrases referred to under sections 2 and 3
Xn Harmful
R22 Harmful 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

3-氨基-4,5-二甲基异噁唑是一种呈灰白色至米色的结晶粉末。这种化合物在多种抗菌药物分子的制备中扮演着重要角色，因为它可以作为异噁唑啉的硝基化衍生物。

其制备方法如下：首先，将盐酸羟胺溶解于100毫升乙酸乙酯中配成溶液；其次，在100毫升水中溶解碳酸氢钠，并向其中加入500毫升乙酸乙酯。在冰水浴条件下，逐步滴加硝基取代的α,β-不饱和酮。随后，控制反应温度在0至8℃之间，继续滴加盐酸羟胺乙酸乙酯溶液。滴加完成后，在冰水浴中充分反应2小时，并于室温下搅拌3小时。最后，分取有机相并用无水硫酸钠干燥，减压浓缩得到目标产物3-硝基-4,5-二氢异恶唑。

反应信息

• 作为反应物：
  描述：

  3-氨基-4,5-二甲基异噁唑 在 吡啶 、 盐酸 、 4-二甲氨基吡啶 、 四(三苯基膦)钯 、 正丁基锂 、 sodium hydride 、 sodium carbonate 作用下， 以 四氢呋喃 、 乙醇 、 N,N-二甲基甲酰胺 、 甲苯 、 正戊烷 为溶剂， 反应 10.17h， 生成 N-(4,5-Dimethyl-3-isoxazolyl)-2'-formyl-4'-(2-oxazolyl)[1,1'-biphenyl]-2-sulfonamide
  参考文献：
  名称：

  Biphenylsulfonamide Endothelin Receptor Antagonists. 4. Discovery of N-[[2‘-[[(4,5-Dimethyl-3-isoxazolyl)amino]sulfonyl]-4-(2-oxazolyl)[1,1‘-biphenyl]- 2-yl]methyl]-N,3,3-trimethylbutanamide (BMS-207940), A Highly Potent and Orally Active ET_A Selective Antagonist

  摘要：

  We have previously disclosed the selective ETA receptor antagonist N-(3,4-dimethyl-5-isoxazolyl)-4'-(2-oxazolyl)[1,1'-biphenyl]-2-sulfonamide (1, BMS-193884) as a clinical development candidate. Additional SAR studies at the 2'-position of 1 led to the identification of several analogues with improved binding affinity as well as selectivity for the ETA receptor. Following the discovery that a 3-amino-isoxazole group displays significantly improved metabolic stability in comparison to its 5-regioisomer, the 3-amino-isoxazole group was combined with the optimal 2'-substituent lleading to 16a (BMS-207940). Compound 16a is an extremely potent (ETAKi = 10 pM) and selective (80000-fold for ETA vs ETB) antagonist. It is also 150-fold more potent and >6-fold more selective than 1. The bioavailability of 16a was 100% in rats and the systemic clearance and volume of distribution are higher than that of 1. In rats, intravenous 16a blocks big ET pressor responses with 30-fold greater potency than 1. After oral dosing at 3 mumol/kg, 16a displays enhanced duration relative to 1.

  DOI：

  10.1021/jm020289q
• 作为产物：
  描述：

  2,3-二溴-2-甲基丁腈 在 乙酰氧肟酸 、 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 18.0h， 以62%的产率得到3-氨基-4,5-二甲基异噁唑
  参考文献：
  名称：

  Practical Synthesis of 3-Amino-4,5-dimethylisoxazole from 2-Methyl-2-butenenitrile and Acetohydroxamic Acid

  摘要：

  3-Amino-4,5-dimethylisoxazole was prepared from technical-grade 2-methyl-2-butenenitrile and acetohydroxamic acid in a 62% overall yield on a multimole scale. The key features of this synthesis are (1) DBU treatment of the technical-grade nitrile mixture to provide a starting material of acceptable purity and (2) use of acetohydroxamic acid as an N-protected hydroxylamine equivalent. This operationally simple method provides the title compound in reasonable overall yield and free of contamination from the isomeric 5-amino-3,4-dimethylisoxazole.

  DOI：

  10.1021/op060239l
• 作为试剂：
  描述：

  3-氨基-4,5-二甲基异噁唑 、 2-(4-((2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl)-2-ethoxymethylphenyl)benzenesulfonyl chloride 在 3-氨基-4,5-二甲基异噁唑 作用下， 生成 非维匹仑
  参考文献：
  名称：

  [EN] BIPHENYL INTERMEDIATE COMPOUNDS AND METHODS FOR THE PREPARATION OF A DUAL ANGIOTENSIN II AND ENDOTHELIN A RECEPTOR ANTAGONIST
  [FR] COMPOSES INTERMEDIAIRES DE BIPHENYLE ET PROCEDES POUR LA PREPARATION D'UN DOUBLE ANTAGONISTE DE RECEPTEUR D'ANGIOTENSINE II ET D'ENDOTHELINE

  摘要：

  本文公开了一种用于制备N-(3,4-二甲基-5-异恶唑基)-2-(4-(2-丁基-4-氧代-1,3-二氮杂螺[4.4]壬-1-烯-3-基)甲基-2-乙氧甲基苯基)苯磺酰胺的方法和化合物。

  公开号：

  WO2010135350A2

文献信息

• Biphenylsulfonamide Endothelin Antagonists:  Structure−Activity Relationships of a Series of Mono- and Disubstituted Analogues and Pharmacology of the Orally Active Endothelin Antagonist 2‘-Amino-<i>N</i>- (3,4-dimethyl-5-isoxazolyl)-4‘-(2-methylpropyl)[1,1‘-biphenyl]-2-sulfonamide (BMS-187308)
  作者：Natesan Murugesan、Zhengxiang Gu、Philip D. Stein、Sharon Bisaha、Steve Spergel、Ravi Girotra、Ving G. Lee、John Lloyd、Raj N. Misra、Joan Schmidt、Arvind Mathur、Leslie Stratton、Yolanda F. Kelly、Eileen Bird、Tom Waldron、Eddie C.-K. Liu、Rongan Zhang、Helen Lee、Randy Serafino、Benoni Abboa-Offei、Parker Mathers、Mary Giancarli、Andrea Ann Seymour、Maria L. Webb、Suzanne Moreland、Joel C. Barrish、John T. Hunt

  DOI：10.1021/jm970872k

  日期：1998.12.1

  Substitution at the ortho position of N-(3,4-dimethyl-5-isoxazolyl) benzenesulfonamide led to the identification of the biphenylsulfonamides as a novel series of endothelin-A (ETA) selective antagonists. Appropriate substitutions on the pendant phenyl ring led to improved binding as well as functional activity. A hydrophobic group such as isobutyl or isopropoxyl was found to be optimal at the 4'-position

  N-（3,4-二甲基-5-异恶唑基）苯磺酰胺在邻位的取代导致将联苯磺酰胺鉴定为新型的内皮素-A（ETA）选择拮抗剂。苯环侧基上的适当取代导致改进的结合以及功能活性。发现疏水基团例如异丁基或异丙氧基在4'-位是最佳的。在2'-位引入氨基也导致改进的类似物。最佳的4'-异丁基取代基与2'-氨基官能团的结合提供了具有改善的ETA结合亲和力和功能活性的类似物（20，BMS-187308）。化合物20在抑制大鼠ET-1输注引起的升压作用方面也具有良好的口服活性。
• Compounds Which Modulate The CB2 Receptor
  申请人：Berry Angela

  公开号：US20100009964A1

  公开（公告）日：2010-01-14

  Compounds of formula (I) are disclosed. Compounds according to the and are useful for treating inflammation. Those compounds which are agonists are additionally useful for treating pain.

  公式（I）的化合物已被披露。根据该公式的化合物对治疗炎症有用。那些是激动剂的化合物还额外适用于治疗疼痛。
• Sulfonamide endothelin antagonists
  申请人：Bristol-Myers Squibb Co.

  公开号：US05378715A1

  公开（公告）日：1995-01-03

  Compounds of the formula ##STR1## inhibit endothelin, wherein: one of X and Y is N and the other is O; R is naphthyl or naphthyl substituted with R.sup.1, R.sup.2 and R.sup.3 ; R.sup.1, R.sup.2 and R.sup.3 are each independently hydrogen; alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, or aralkyl, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3 ; halo; hydroxyl; cyano; nitro; --C(O)H; --C(O)R.sup.6 ; CO.sub.2 H; --CO.sub.2 R.sup.6 ; --SH; --S(O).sub.n R.sup.6 ; --S(O).sub.m --OH; --S(O).sub.m --OR.sup.6 ; --O--S(O).sub.m --R.sup.6 ; --O--S(O).sub.m OH; --O--S(O).sub.m --OR.sup.6 ; --Z.sup.4 --NR.sup.7 R.sup.8 ; or --Z.sup.4 --N(R.sup.11)--Z.sup.5 --NR.sup.9 R.sup.10 ; R.sup.4 and R.sup.5 are each independently hydrogen; alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, or aralkyl, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3 ; halo; hydroxyl; cyano; nitro; --C(O)H; --C(O)R.sup.6 ; --CO.sub.2 H; --CO.sub.2 R.sup.6 ; --SH, --S(O).sub.n R.sup.6 ; --S(O).sub.m --OH; --S(O).sub.m --OR.sup.6 ; --O--S(O).sub.m --R.sup.6 ; --O--S(O).sub.m OH; --O--S(O).sub.m --OR.sup.6 ; --Z.sup.4 --NR.sup.7 R.sup.8 ; --Z.sup.4 --N(R.sup.11)--Z.sup.5 --NR.sup.9 R.sup.10 ; or R.sup.4 and R.sup.5 together are alkylene or alkenylene (either of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3), completing a 4- to 8-membered saturated, unsaturated or aromatic ring together with the carbon atoms to which they are attached.

  ##STR1##的化合物抑制内皮素，其中：X和Y中的一个是N，另一个是O；R是萘基或被R.sup.1，R.sup.2和R.sup.3取代的萘基；R.sup.1，R.sup.2和R.sup.3分别独立地是氢；烷基，烯基，炔基，烷氧基，环烷基，环烷基烷基，环烯基，环烯基烷基，芳基或芳基烷基，其中任何一个可能被Z.sup.1，Z.sup.2和Z.sup.3取代；卤素；羟基；氰基；硝基；--C(O)H；--C(O)R.sup.6；CO.sub.2 H；--CO.sub.2 R.sup.6；--SH；--S(O).sub.n R.sup.6；--S(O).sub.m --OH；--S(O).sub.m --OR.sup.6；--O--S(O).sub.m --R.sup.6；--O--S(O).sub.m OH；--O--S(O).sub.m --OR.sup.6；--Z.sup.4 --NR.sup.7 R.sup.8；或--Z.sup.4 --N(R.sup.11)--Z.sup.5 --NR.sup.9 R.sup.10；R.sup.4和R.sup.5分别独立地是氢；烷基，烯基，炔基，烷氧基，环烷基，环烷基烷基，环烯基，环烯基烷基，芳基或芳基烷基，其中任何一个可能被Z.sup.1，Z.sup.2和Z.sup.3取代；卤素；羟基；氰基；硝基；--C(O)H；--C(O)R.sup.6；--CO.sub.2 H；--CO.sub.2 R.sup.6；--SH，--S(O).sub.n R.sup.6；--S(O).sub.m --OH；--S(O).sub.m --OR.sup.6；--O--S(O).sub.m --R.sup.6；--O--S(O).sub.m OH；--O--S(O).sub.m --OR.sup.6；--Z.sup.4 --NR.sup.7 R.sup.8；--Z.sup.4 --N(R.sup.11)--Z.sup.5 --NR.sup.9 R.sup.10；或R.sup.4和R.sup.5一起是烷基或烯基（其中任何一个可能被Z.sup.1，Z.sup.2和Z.sup.3取代），与它们连接的碳原子一起形成4-至8-成员饱和，不饱和或芳香环。
• Bicyclic sulfonamide compounds as sodium channel inhibitors
  申请人：AMGEN INC.

  公开号：US09212182B2

  公开（公告）日：2015-12-15

  The present invention provides compounds of Formula I, and pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav1.7. The compounds are useful for the treatment of diseases associated with the activity of sodium channels such as pain disorders and itch. Also provided are pharmaceutical compositions containing compounds of the present invention.

  本发明提供了式I的化合物及其药学上可接受的盐，这些化合物是钠通道的抑制剂，特别是Nav1.7。这些化合物对于治疗与钠通道活性相关的疾病，如疼痛障碍和瘙痒，是有用的。还提供了含有本发明化合物的药物组合物。
• [EN] ETHER BENZYLIDENE PIPERIDINE 5-MEMBERED ARYL CARBOXAMIDE COMPOUNDS USEFUL AS FAAH INHIBITORS<br/>[FR] COMPOSÉS D'ÉTHER-BENZYLIDÈNE-PIPÉRIDINE-ARYL À 5 CHAÎNONS-CARBOXAMIDE UTILES COMME INHIBITEURS DE FAAH
  申请人：PFIZER

  公开号：WO2009127943A1

  公开（公告）日：2009-10-22

  The present invention relates to compounds of the Formula (I), and pharmaceutically acceptable salts thereof, and their use in the treatment of FAAH-mediated diseases or condition.

  本发明涉及式(I)的化合物，及其在治疗FAAH介导的疾病或症状中的应用的药用盐。