L-3,5-二氟苯丙氨酸 | 31105-91-6

• 物质功能分类: 生物化工 - 氨基酸及其衍生物 - 苯丙氨酸类衍生物
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: L-3,5-二氟苯丙氨酸
• 中文别名: 3,5-二氟-L-苯丙氨酸
• 英文名称: 3',5'-Difluoro-L-phenylalanine
• 英文别名: (S)-2-amino-3-(3,5-difluorophenyl)propanoic acid；(2S)-2-azaniumyl-3-(3,5-difluorophenyl)propanoate
• CAS: 31105-91-6
• 化学式: C₉H₉F₂NO₂
• 分子量: 201.173
• InChiKey: QFGMPXZFCIHYIR-QMMMGPOBSA-N

物化性质

• 沸点：
  295.1±40.0 °C(Predicted)
• 密度：
  1.379±0.06 g/cm3(Predicted)
• 溶解度：
  甲醇（微溶）、水（微溶）
• 稳定性/保质期：
  如果按照规格使用和储存，则不会分解，也未有已知危险反应。

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  63.3
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 危险品标志：
  Xi
• RTECS号：
  UH0420000
• 海关编码：
  2922499990
• 安全说明：
  S26,S37/39
• 危险类别码：
  R36/37/38
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3,5-Difluoro-L-phenylalanine
Synonyms:

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

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Section 3. Composition/information on ingredients.
Ingredient name: 3,5-Difluoro-L-phenylalanine
CAS number: 31105-91-6

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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.

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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.

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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.

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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.
Storage:

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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.

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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: C9H9F2NO2
Molecular weight: 201.2

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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.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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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.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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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.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  L-3,5-二氟苯丙氨酸 在 氯化亚砜 、 benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate 作用下， 以 二氯甲烷 为溶剂， 生成 (S)-2-{[(S)-1-(3,5-Dichloro-benzenesulfonyl)-pyrrolidine-2-carbonyl]-amino}-3-(3,5-difluoro-phenyl)-propionic acid methyl ester
  参考文献：
  名称：

  Substituted N-(3,5-Dichlorobenzenesulfonyl)-l-prolyl-phenylalanine analogues as potent VLA-4 antagonists

  摘要：

  A series of substituted N-(3,5-dichlorobenzenesulfonyl)-L-prolyl- and alpha-methyl-L-prolyl-phenylalanine derivatives was prepared as VLA-4/VCAM antagonists. The compounds showed excellent potency with a wide variety of neutral, polar, electron withdrawing or donating groups on the phenylalanine ring (IC50 similar to I nM). Heteroaryl ring substitution for phenylalanine was also well tolerated. Pharmacokinetic studies in rat were performed on a representative set of compounds in both series. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0960-894x(01)00821-6
• 作为产物：
  描述：

  3,5-二氟丁二酸 在 Petroselinum crispum phenylalanine ammonialyase (1U) ammonium hydroxide 作用下， 反应 24.0h， 以69%的产率得到L-3,5-二氟苯丙氨酸
  参考文献：
  名称：

  Phenylalanine Ammonia-Lyase: The Use of Its Broad Substrate Specificity for Mechanistic Investigations and Biocatalysis—Synthesis ofL-Arylalanines

  摘要：

  Several fluoro- and chlorophenylalanines were found to be good substrates of phenylalanine ammonialyase (PAL/EC 4.3.1.5) from parsley. The enantiomerically pure L-amino acids were obtained in goad yields by reaction of the corresponding cinnamic acids with 5M ammonia solution (buffered to pH 10) in the presence of PAL. The kinetic constants for nine different fluoro- and chlorophenylalanines do not provide a rigorous proof for but are consistent with the previously proposed mechanism comprising an electrophilic attack of the methylidene-imidazolone cofactor of PAL at the aromatic nucleus as a first chemical step. In the resulting Friedel-Crafts-type sigma complex the beta-protons are activated for abstraction and consequently the pro-S is abstracted by an enzymic base. Results from semiempirical calculations combined with a proposed partial active site model showed a correlation between the experimental kinetic constants and the change in polarization of the pro-S Cd-H bond and heat of formation of the ir complexes, thus making the electrophilic attack at the neutral aromatic ring plausible. Furthermore, while 5-pyrimidinylalanine was found to be a moderately good substrate of PAL, 2-pyrimidinylalanine was an inhibitor.

  DOI：

  10.1002/1521-3765(20000915)6:18<3386::aid-chem3386>3.0.co;2-5

文献信息

• [EN] SULPHONYLAMINO DERIVATIVES FOR THE TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] DERIVES SULFONYLAMINO POUR LE TRAITEMENT DE LA MALADIE D'ALZHEIMER
  申请人：NOVO PHARMACEUTICALS LTD DE

  公开号：WO2004020402A1

  公开（公告）日：2004-03-11

  A compound of formula (I), wherein R1 is alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl, aryl, heteroaryl, heteropolycyclyl or polycyclyl, any of which is optionally substituted with alkyl, heteroaryl, aryl or -O-aryl; R2 is alkyl, alkenyl or aryl, any of which is optionally substituted with hydroxy, halogen, aryl, heteroaryl, cycloalkyl, cycloalkenyl, -C(O)NH-aryl, heterocycloalkyl, heterocycloalkenyl, heteropolycyclyl or polycyclyl; R3 is hydrogen or aryl; R4 is alkyl, alkenyl, alkoxy, alkylthio or aryl, any of which is optionally substituted with hydroxy, aryl, heteroaryl, cycloalkyl, cycloalkenyl, thioalkyl, heterocycloalkyl, heterocycloalkenyl, heteropolycyclyl or polycyclyl; R5 is hydrogen or an alkyl or alkenyl group optionally substituted with hydroxy, aryl, -C(O)O- alkyl or -C(O)NH- alkyl; or R4-C-R5 taken together form cycloalkyl, cycloalkenyl or polycyclyl, any of which is optionally substituted with alkyl or hydroxyalkyl; R6 is hydrogen, alkyl, -alkyl-aryl or -alkyl-heteroaryl; or a pharmaceutically-acceptable salt thereof.

  公式(I)的化合物，其中R1是烷基、烯基、环烷基、环烯基、杂环烷基、杂环烯基、芳基、杂芳基、杂多环烷基或多环烷基，任选地被烷基、杂芳基、芳基或-O-芳基取代；R2是烷基、烯基或芳基，任选地被羟基、卤素、芳基、杂芳基、环烷基、环烯基、-C(O)NH-芳基、杂环烷基、杂环烯基、杂多环烷基或多环烷基取代；R3是氢或芳基；R4是烷基、烯基、烷氧基、硫代烷基或芳基，任选地被羟基、芳基、杂芳基、环烷基、环烯基、硫代烷基、杂环烷基、杂环烯基、杂多环烷基或多环烷基取代；R5是氢或烷基或烯基，任选地被羟基、芳基、-C(O)O-烷基或-C(O)NH-烷基取代；或者R4-C-R5共同形成环烷基、环烯基或多环烷基，任选地被烷基或羟基烷基取代；R6是氢、烷基、-烷基-芳基或-烷基-杂芳基；或其药物可接受的盐。
• [EN] INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] INHIBITEURS DE LA RÉPLICATION DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
  申请人：BRISTOL MYERS SQUIBB CO

  公开号：WO2016172424A1

  公开（公告）日：2016-10-27

  Compounds of Formula I, including pharmaceutically acceptable salts thereof, and compositions and methods for treating human immunodeficiency virus (HIV) infection are set forth: (I)

  公式I的化合物，包括其药用可接受的盐，以及用于治疗人类免疫缺陷病毒（HIV）感染的组合物和方法被描述如下：（I）
• [EN] HYDROXYETHYLAMINE DERIVATIVES FOR THE TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] DERIVES D'HYDROXYETHYLAMINE UTILISES POUR LE TRAITEMENT DE LA MALADIE D'ALZHEIMER
  申请人：GLAXO GROUP LTD

  公开号：WO2004050619A1

  公开（公告）日：2004-06-17

  The present invention relates to novel hydroxyethylamine compounds of formula (I): (I) having Asp2 (-secretase, BACE1 or Memapsin) inhibitory activity, processes for their preparation, to compositions containing them and to their use in the treatment of diseases characterised by elevated - amyloid levels or -amyloid deposits, particularly Alzheimer's disease.

  本发明涉及具有Asp2（-分泌酶，BACE1或Memapsin）抑制活性的新型羟乙基胺化合物的化学式（I）：（I），其制备方法，含有它们的组合物以及它们在治疗由高β-淀粉样蛋白水平或β-淀粉样蛋白沉积所特征的疾病中的应用，特别是阿尔茨海默病。
• [EN] INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] INHIBITEURS DE LA RÉPLICATION DU VIRUS D'IMMUNODÉFICIENCE HUMAINE
  申请人：VIIV HEALTHCARE (NO 5) LTD

  公开号：WO2016172425A1

  公开（公告）日：2016-10-27

  Compounds of Formulas I-VI, including pharmaceutically acceptable salts thereof, and compositions and methods for treating human immunodeficiency virus (HIV) infection are set forth. Formula I is exemplified below: Formula (i)

  公式I-VI的化合物，包括其药用可接受的盐，以及用于治疗人类免疫缺陷病毒（HIV）感染的组合物和方法。公式I如下所示：公式（i）
• The Bacterial Ammonia Lyase EncP: A Tunable Biocatalyst for the Synthesis of Unnatural Amino Acids
  作者：Nicholas J. Weise、Fabio Parmeggiani、Syed T. Ahmed、Nicholas J. Turner

  DOI：10.1021/jacs.5b07326

  日期：2015.10.14

  deracemization cascades (giving (S)- or (R)-α-phenylalanine derivatives, respectively), and also eukaryotic phenylalanine aminomutases (PAMs) for the synthesis of the (R)-β-products. Herein, we present the investigation of another family member, EncP from Streptomyces maritimus, thereby expanding the biocatalytic toolbox and enabling the production of the missing (S)-β-isomer. EncP was found to convert

  I类裂解酶家族的酶催化氨向丙烯酸芳基酯的不对称加成，产生作为产物的高价值氨基酸。最近的例子包括使用苯丙氨酸氨裂解酶 (PAL)，单独使用或作为去消旋级联的途径（分别提供 (S)- 或 (R)-α-苯丙氨酸衍生物），以及真核苯丙氨酸氨基变位酶 (PAM) (R)-β-产物的合成。在此，我们介绍了对来自 Streptomyces maritimus 的另一个家族成员 EncP 的研究，从而扩展了生物催化工具箱并能够生产缺失的 (S)-β-异构体。发现 EncP 将一系列芳基丙烯酸酯转化为 (S)-α- 和 (S)-β-芳基丙氨酸的混合物，其区域选择性与每个底物环上的吸电子/供电子基团的强度相关。野生型酶的低区域选择性通过基于结构的合理设计得到解决，以产生三种对α-或β-产物具有改变偏好的变体。通过检查各种生物催化剂/底物组合，证明可以调整反应的胺化模式，以根据需要实现 99:1 和 1:99 之间的