N-methyl-L-allo-threonine | 21148-57-2

• 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
• 英文名称: N-methyl-L-allo-threonine
• 英文别名: (2S,3S)-3-hydroxy-2-(methylamino)butanoic acid
• CAS: 21148-57-2
• 化学式: C₅H₁₁NO₃
• 分子量: 133.147
• InChiKey: CCAIIPMIAFGKSI-IMJSIDKUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.1
• 重原子数：
  9
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  69.6
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N-A-(2,4-二硝基-5-氟苯基)-L-丙氨酸 、 N-methyl-L-allo-threonine 在 碳酸氢钠 作用下， 以 水 、 丙酮 为溶剂， 反应 1.0h， 生成 (2S,3S)-2-((5-((S)-1-amino-1-oxopropan-2-ylamino)-2,4-dinitrophenyl)(methyl)amino)-3-hydroxybutanoic acid
  参考文献：
  名称：

  Determination of the Complete Absolute Configuration of Petriellin A

  摘要：

  通过对合成的马菲氏衍生物和天然产物水解物的马菲氏衍生物进行 HPLC 和 TLC 比较，我们确定了 N-甲基异亮氨酸和 N-甲基苏氨酸这两个氨基酸残基的绝对构型。结果发现，这两个 N-甲基化残基的手性中心构型与常见的未甲基化 l-氨基酸的手性中心构型相同。

  DOI：

  10.1071/ch06148
• 作为产物：
  描述：

  (2S,3S)-3-acetoxy-2-((benzyloxycarbonyl)amino)-butanoic acid 在 palladium on activated charcoal 盐酸 、 三乙基硅烷 、 camphor-10-sulfonic acid 、 氢气 、 三氟乙酸 作用下， 以 1,4-二氧六环 、 乙醇 、 氯仿 、 甲苯 为溶剂， 反应 30.0h， 生成 N-methyl-L-allo-threonine
  参考文献：
  名称：

  An Efficient Synthesis of N-Methyl Amino Acids by Way of Intermediate 5-Oxazolidinones

  摘要：

  N-Methyl amino acids occur in many natural products. Experimental strategies are presented for a unified approach to the synthesis of N-methyl derivatives through 5-oxazolidinones of the 20 common L-amino acids. The amino acids with reactive side chains that required protecting groups or devoted syntheses for side chain construction for N-methylation to proceed included serine, threonine, tyrosine, cysteine, methionine, tryptophan, asparagine, histidine, and arginine. The studies have provided improved methods for the preparation of N-methyl serine, threonine, and tyrosine. All 20 of the common L-amino acids are now available in suitable forms for solid or solution-phase peptide synthesis.

  DOI：

  10.1021/jo026722l

文献信息

• [EN] N-METHYL AMINO ACIDS<br/>[FR] ACIDES N-METHYL AMINES
  申请人：UBIQUITOUS TECHNOLOGIES PTY LT

  公开号：WO2004007427A1

  公开（公告）日：2004-01-22

  The present invention relates to a compound of formula (I) or (II), processes for preparing them, peptides including them and kits involving them.

  这项发明涉及到式(I)或(II)的化合物，制备它们的方法，包括它们的肽和涉及它们的试剂盒。
• The Facile Production of N-Methyl Amino Acids via Oxazolidinones
  作者：Luigi Aurelio、Robert T. C. Brownlee、Andrew B. Hughes、Brad E. Sleebs

  DOI：10.1071/ch99082

  日期：——

  A range of oxazolidinones derived from N-carbamoylα-amino acids were prepared by an efficient method as key intermediatesin the synthesis of N-methyl amino acids and peptides.The method was readily applied to most α-amino acids except those withbasic side chains. The oxazolidinones were converted by reductive cleavageinto N-methyl α-amino acids.

  以N-氨基甲酰基α-氨基酸为原料，制备了一系列恶唑烷酮类化合物，作为合成N-甲基氨基酸和多肽的关键中间体。该方法适用于除碱性侧链以外的大多数α-氨基酸。恶唑烷酮通过还原裂解转化为N-甲基α-氨基酸。
• Halogenated Fatty Acid Amides and Cyclic Depsipeptides from an Eastern Caribbean Collection of the Cyanobacterium <i>Lyngbya majuscula</i>
  作者：Jorge I. Jiménez、Tifanie Vansach、Wesley Y. Yoshida、Bryan Sakamoto、Peter Pörzgen、F. David Horgen

  DOI：10.1021/np900173d

  日期：2009.9.25

  extract of an eastern Caribbean collection of Lyngbya majuscula yielded two new halogenated fatty acid amides, grenadamides B (1) and C (2), and two new depsipeptides, itralamides A (3) and B (4), along with the known compounds hectochlorin and deacetylhectochlorin. The recently reported depsipeptide carriebowmide (5) was also present in the extract and isolated as its sulfone artifact (6). Compounds 1−4

  东加勒比收集的Lyngbya majuscula的亲脂性提取物产生了两种新的卤代脂肪酸酰胺，手榴弹胺 B ( 1 ) 和 C ( 2 )，以及两种新的缩肽，依曲酰胺 A ( 3 ) 和 B ( 4 )，以及已知的化合物八氯环素和脱乙酰八氯环素。最近报道的缩酚肽 carriebowmide ( 5 ) 也存在于提取物中，并作为其砜类人工制品被分离 ( 6 )。化合物1 - 4通过光谱方法鉴定。3 , 4 , 6氨基酸残基的构型通过酸水解产物的非对映异构衍生物的 LC-MS 分析（高级 Marfey 方法）确定。基于6的构型分析，与真正的carriebowmide ( 5 )直接比较，提出了对5的微小结构修正。化合物1和2对甜菜夜蛾（Spodoptera exigua）显示出边际活性。化合物1 - 4和6进行了评估在人胚胎肾（HEK293）细胞一般小区毒性。只有依曲酰胺 B ( 4 ) 显示出显着的细胞毒性，IC
• Etude par la modélisation moléculaire de la régiosélectivité de l'Ouverture des acides glycidiques par les amines aliphatiques
  作者：F. Grosjean、M. Huché、M. Larchevêque、J.J. Legendre、Y. Petit

  DOI：10.1016/s0040-4020(01)85509-5

  日期：——

  A model for glycidic acids opening reaction by ammonia and amines has been suggested from semi-empiric orbital calculations. It provides a way for evaluating the different interactions between the incoming nucleophile and the oxirane substituents. Steric and coulombic interactions of the carboxylate in staggered conformation (cis substitution) has a major influence to rationalize experimental regioselectivity

  从半经验轨道计算中已经提出了由氨和胺引起的缩水甘油酸打开反应的模型。它提供了一种评估传入的亲核试剂与环氧乙烷取代基之间不同相互作用的方法。交错构象（顺式取代）中羧酸盐的立体和库仑相互作用对合理化实验区域选择性具有重大影响。
• Coibamide A, a Potent Antiproliferative Cyclic Depsipeptide from the Panamanian Marine Cyanobacterium <i>Leptolyngbya</i> sp.
  作者：Rebecca A. Medina、Douglas E. Goeger、Patrice Hills、Susan L. Mooberry、Nelson Huang、Luz I. Romero、Eduardo Ortega-Barría、William H. Gerwick、Kerry L. McPhail

  DOI：10.1021/ja801383f

  日期：2008.5.1

  Coibamide A (1) is a new, potent antiproliferative depsipeptide which was isolated from a marine Leptolyngbya cyanobacterium collected from the Coiba National Park, Panama. The planar structure of I was elucidated by a combination of NMR spectroscopy and mass spectrometry. Exhaustive 1 D and 2D NMR spectroscopy included natural abundance (15)N and variable temperature experiments; mass spectrometry included TOF-ESI-MS(n) and FT-MS(n) experiments, Chemical degradation followed by chiral HPLC- and GC-MS analyses was used to assign the absolute configuration of 1. This highly methylated cyclized depsipeptide exhibited an unprecedented selectivity profile in the NCl 60 cancer cell line panel and appears to act via a novel mechanism.