N-甲基-L-亮氨酸 | 3060-46-6

• 物质功能分类: 生物化工 - 氨基酸及其衍生物 - 亮氨酸类衍生物
• 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: N-甲基-L-亮氨酸
• 英文名称: N-methyl-L-leucine
• 英文别名: N-Me-L-Leu；N-methylleucine；(2S)-4-methyl-2-(methylamino)pentanoic acid；N-Me-Leu；(2S)-4-methyl-2-(methylazaniumyl)pentanoate
• CAS: 3060-46-6
• 化学式: C₇H₁₅NO₂
• 分子量: 145.202
• InChiKey: XJODGRWDFZVTKW-LURJTMIESA-N

物化性质

• 熔点：
  300 °C
• 沸点：
  226.1±23.0 °C(Predicted)
• 密度：
  0.979±0.06 g/cm3(Predicted)
• 溶解度：
  0.31 M
• 稳定性/保质期：
  遵照规定使用和储存，则不会分解。

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• WGK Germany：
  3
• 海关编码：
  2922499990
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  存放于阴凉干燥处

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: N-Methyl-L-leucine HCl
Synonyms: N-Me-Leu-OH HCl; H-MeLeu-OH HCl

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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: N-Methyl-L-leucine HCl
CAS number: 3060-46-6

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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: C7H15NO2.ClH
Molecular weight: 181.7

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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 chloride.

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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

制备方法与用途

(S)-4-甲基-2-(甲胺基)戊酸是一种亮氨酸衍生物。

反应信息

• 作为反应物：
  描述：

  N-甲基-L-亮氨酸 在 氯化亚砜 、 N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下， 以 二氯甲烷 为溶剂， 生成 Boc-Phe-NMe-Leu-OMe
  参考文献：
  名称：

  通过系统置换酰胺获得的一系列线性亮氨酸脑啡肽类似物的 Delta 阿片受体的制备和评价

  摘要：

  使用经典有机化学和固相肽合成 (SPPS) 制备亮氨酸脑啡肽类似物，其中酰胺键被酯或N-甲基酰胺键顺序和系统地取代。使用竞争结合、ERK1/2 磷酸化、受体内化和收缩性测定来表征肽模拟物，以评估它们对 delta 阿片受体 (DOPr) 的药理学特征。还测量了活性类似物的亲脂性(LogD 7.4 )和血浆稳定性。我们的结果表明，最后一个酰胺键可以被酯或N成功取代与亮氨酸脑啡肽相比，-甲基酰胺键不会显着降低相应类似物的生物活性。发现在残基 Phe 和 Leu 之间具有N-甲基酰胺功能的肽模拟物比 Leu-脑啡肽更亲脂且更稳定。本研究的结果进一步表明，亮氨酸脑啡肽的第四个酰胺的氢键供体性质对其对 DOPr 的生物活性并不重要。我们的结果表明，用等排功能系统地替换酰胺键代表了一种设计和合成具有增强稳定性的新型肽类似物的有效方法。我们的研究结果进一步表明，这种策略也可用于研究酰胺键的生物学作用。

  DOI：

  10.1021/cn4000583
• 作为产物：
  描述：

  Sporidesmolsaeure C; L-α-Hydroxy-isocaproyl-Val-N-methyl-Leu 在 盐酸 作用下， 生成 N-甲基-L-亮氨酸
  参考文献：
  名称：

  玉米假单胞菌中环己二肽sporidemolide IV的分离与结构

  摘要：

  所生产的环缩酚酸肽Pithomyces maydicus含有的主要成分，sporidesmolide IV，其具有结构环- （大号-α-hydroxyisovaleryl- d -valyl- d -leucyl-大号-α-hydroxyisocaproyl-大号-valyl- Ñ甲基大号-leucyl）。

  DOI：

  10.1039/j39670000634

文献信息

• Urumamide, a novel chymotrypsin inhibitor with a β-amino acid from a marine cyanobacterium Okeania sp.
  作者：Yuki Kanamori、Arihiro Iwasaki、Shinpei Sumimoto、Kiyotake Suenaga

  DOI：10.1016/j.tetlet.2016.08.012

  日期：2016.9

  Urumamide, a novel cyclic depsipeptide that contains a β-amino acid, was isolated from a marine cyanobacterium Okeania sp. Its gross structure was determined by spectroscopic analyses, and the absolute configuration was established based on Marfey’s analyses and chiral HPLC analyses of hydrolysis products. Biologically, urumamide inhibited the growth of human cancer cells. In addition, urumamide inhibited

  从海洋蓝藻Okeania sp。分离出一种新型的环状β肽Urumamide。通过光谱分析确定其总体结构，并基于Marfey分析和水解产物的手性HPLC分析建立绝对构型。从生物学上说，尿嘧啶抑制人类癌细胞的生长。此外，尿嘧啶可抑制胰凝乳蛋白酶。
• Synthesis and Biological Activity of Peptides Related to Eledoisin. II. Hexapeptide Amides Containing<i>N</i>-Methylamino Acids
  作者：Hiroshi Sugano、Ko Higaki、Muneji Miyoshi

  DOI：10.1246/bcsj.46.231

  日期：1973.1

  Eledoisin-like hexapeptides were synthesized in order to obtain longer-lasting hypotensive analogs. A part of the amino acid of the standard pep tide, H–Lys–Phe–Ile–Gly–Leu–Met–NH2 (1), was replaced by N-methylamino acid. It was found, in these syntheses, that when the C-terminal amino acid of a carboxy component was an N-methylamino acid, a system of dicyclohexylcarbodiimide plus 1-hydroxybenzotriazole was a useful coupling agent. With regard to the hypotensive effect in rabbits, H–Lys–Phe–Melle–Gly–Leu–Met–NH2 (2) and H–Lys–Phe–Ile–Gly–Melle–Met–NH2 (6) show much less activity; H–Lys–MePhe–Ile–Gly–Leu–Met–NH2 (3) and H–Lys–MePhe–Ile–Gly–MeLeu–Met–NH2 (7) show a substantial activity, though weaker than the standard one. On the other hand, H–Lys–Phe–Ile–Gly–MeLeu–Met–NH2 (5) and H–Lys–Phe–Ile–Sar–Leu–Met–NH2(4) show a higher activity than 1. These results indicate that, in some cases, the replacement of an amide bond by an N-methylamide bond without any change in the side chain of amino acid would have an important influence on the activity. The duration of the action of N-methypeptildes synthesized was unexpectedly of the same order of magnitude as that of 1.

  为获得更持久降压效果的模拟物，合成了促咽激素样六肽。将标准肽H-Lys-Phe-Ile-Gly-Leu-Met-NH2（1）中的部分氨基酸替换为N-甲基氨基酸。在这些合成中，发现当羧基部分C末端氨基酸为N-甲基氨基酸时，二环己基碳二亚胺加1-羟基苯并三唑是一种有用的偶联剂。关于对兔子的降压效果，H-Lys-Phe-Melle-Gly-Leu-Met-NH2（2）和H-Lys-Phe-Ile-Gly-Melle-Met-NH2（6）的活性大大降低；H-Lys-MePhe-Ile-Gly-Leu-Met-NH2（3）和H-Lys-MePhe-Ile-Gly-MeLeu-Met-NH2（7）显示出相当的活性，尽管弱于标准肽。另一方面，H-Lys-Phe-Ile-Gly-MeLeu-Met-NH2（5）和H-Lys-Phe-Ile-Sar-Leu-Met-NH2（4）的活性高于1。这些结果表明，在某些情况下，将酰胺键替换为N-甲基酰胺键而不改变氨基酸侧链会对活性产生重要影响。合成的N-甲基肽的作用持续时间与1相当。
• [EN] METABOLICALLY ROBUST ANALOGS OF CYP-EICOSANOIDS FOR THE TREATMENT OF CARDIAC DISEASE<br/>[FR] ANALOGUES ROBUSTES SUR LE PLAN MÉTABOLIQUE DES CYP-EICOSANOÏDES POUR LE TRAITEMENT DES MALADIES CARDIAQUES
  申请人：OMEICOS THERAPEUTICS GMBH

  公开号：WO2017013265A1

  公开（公告）日：2017-01-26

  The present invention relates to compounds according to general formula (I) which are metabolically robust analogues of bioactive lipid mediators derived from omega-3 polyunsaturated fatty acids (n-3 PUFAs).The present invention further relates to compositions containing one or more of these compounds and to the use of these compounds or compositions for the treatment or prevention of cardiovascular diseases.

  本发明涉及符合一般式（I）的化合物，这些化合物是从ω-3多不饱和脂肪酸（n-3 PUFAs）衍生的生物活性脂质介质的代谢稳健类似物。本发明还涉及含有这些化合物中的一个或多个的组合物，以及利用这些化合物或组合物治疗或预防心血管疾病。
• [EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS ET MÉTHODES POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
  申请人：CIDARA THERAPEUTICS INC

  公开号：WO2018006063A1

  公开（公告）日：2018-01-04

  Compositions and methods for the treatment of bacterial infections include compounds containing dimers of cyclic heptapeptides conjugated to one or more monosaccharide or oligosaccharide moieties. In particular, compounds can be used in the treatment of bacterial infections caused by Gram-negative bacteria.

  用于治疗细菌感染的组合物和方法包括含有环七肽二聚体与一个或多个单糖或寡糖基团结合的化合物。特别是，这些化合物可用于治疗由革兰氏阴性细菌引起的细菌感染。
• Reductive methylation of primary and secondary amines and amino acids by aqueous formaldehyde and zinc
  作者：Renato A. da Silva、Idália H.S. Estevam、Lothar W. Bieber

  DOI：10.1016/j.tetlet.2007.08.092

  日期：2007.10

  Amines can be methylated when treated with formaldehyde and zinc in aqueous medium. Selective mono- or dimethylation can be achieved by proper choice of pH, stoichiometry and reaction time. This method can also be applied for amino acids.

  在水性介质中用甲醛和锌处理时，胺可被甲基化。选择性单或二甲基化可以通过pH值，化学计量和反应时间的适当选择来实现。该方法也可以用于氨基酸。