benzyl N-[(1S)-1-(4,5-dihydro-4,4-dimethyl-5-oxo-1,3-thiazol-2-yl)ethyl]carbamate | 457058-47-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: benzyl N-[(1S)-1-(4,5-dihydro-4,4-dimethyl-5-oxo-1,3-thiazol-2-yl)ethyl]carbamate
• 英文别名: Z-Ala-[1,3-thiazol-5(4H)-one]Aib；benzyl N-[(1S)-1-(4,4-dimethyl-5-oxo-1,3-thiazol-2-yl)ethyl]carbamate
• CAS: 457058-47-8
• 化学式: C₁₅H₁₈N₂O₃S
• 分子量: 306.386
• InChiKey: ZVMOSXQWCPZUPT-JTQLQIEISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  93.1
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  benzyl N-[(1S)-1-(4,5-dihydro-4,4-dimethyl-5-oxo-1,3-thiazol-2-yl)ethyl]carbamate 在 lithium hydroxide 、 1-羟基苯并三唑 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 甲醇 、 水 、 乙腈 为溶剂， 反应 99.0h， 生成 Z-Ala-Ψ(CS)-Aib-Ile-OH
  参考文献：
  名称：

  Formation of 1,3-Thiazol-5(4H)-imines and 1,3-Oxazol-5(4H)-imines in Aib-Containing Thiopeptides

  摘要：

  When tripeptides of type Axx'-Aib-Axx-OH were coupled with amino acid methyl esters by means of commonly used coupling reagents, the formation of 1,3-thiazol-5(4H)-imines and 1,3-oxazol-5(411)-imines was observed. With the aim Of understanding which structure elements are required for this reaction, several model peptides have been prepared according to our recently described methodology, a modification of the 'azirine/oxazolone method', followed by selective isomerization of the peptide thioamides. In addition, attempts to prepare peptides that contain more than one C=S group by the same methodology also led to the formation of 1,3-thiazol-5(4H)-imine-containing derivatives. An additional C=S group can be introduced into the peptide, when the 1,3-thiazol-5(4H)-imines were treated with H2S, although mixtures of epimers were obtained. The structures of an endothiohexapeptide, two 1,3-thiazol-5(4H)-imine, and two peptides containing a 1,3-thiazol5(4H)-imine moiety have been established by X-ray crystal-structure analysis.

  DOI：

  10.1002/1522-2675(200204)85:4<990::aid-hlca990>3.0.co;2-6
• 作为产物：
  描述：

  benzyl N-[(S)-1-methyl-(2-{1,1-dimethyl-2-[methyl(phenyl)amino]-2-oxoethyl}amino)-2-thioxoethyl]carbamate 在 camphor-10-sulfonic acid 作用下， 以 二氯甲烷 为溶剂， 反应 0.03h， 以92%的产率得到benzyl N-[(1S)-1-(4,5-dihydro-4,4-dimethyl-5-oxo-1,3-thiazol-2-yl)ethyl]carbamate
  参考文献：
  名称：

  Formation of 1,3-Thiazol-5(4H)-imines and 1,3-Oxazol-5(4H)-imines in Aib-Containing Thiopeptides

  摘要：

  When tripeptides of type Axx'-Aib-Axx-OH were coupled with amino acid methyl esters by means of commonly used coupling reagents, the formation of 1,3-thiazol-5(4H)-imines and 1,3-oxazol-5(411)-imines was observed. With the aim Of understanding which structure elements are required for this reaction, several model peptides have been prepared according to our recently described methodology, a modification of the 'azirine/oxazolone method', followed by selective isomerization of the peptide thioamides. In addition, attempts to prepare peptides that contain more than one C=S group by the same methodology also led to the formation of 1,3-thiazol-5(4H)-imine-containing derivatives. An additional C=S group can be introduced into the peptide, when the 1,3-thiazol-5(4H)-imines were treated with H2S, although mixtures of epimers were obtained. The structures of an endothiohexapeptide, two 1,3-thiazol-5(4H)-imine, and two peptides containing a 1,3-thiazol5(4H)-imine moiety have been established by X-ray crystal-structure analysis.

  DOI：

  10.1002/1522-2675(200204)85:4<990::aid-hlca990>3.0.co;2-6

文献信息

• Formation of 1,3-Thiazol-5(4H)-imines and 1,3-Oxazol-5(4H)-imines in Aib-Containing Thiopeptides
  作者：Roland A. Breitenmoser、Anthony Linden、Heinz Heimgartner

  DOI：10.1002/1522-2675(200204)85:4<990::aid-hlca990>3.0.co;2-6

  日期：2002.4

  When tripeptides of type Axx'-Aib-Axx-OH were coupled with amino acid methyl esters by means of commonly used coupling reagents, the formation of 1,3-thiazol-5(4H)-imines and 1,3-oxazol-5(411)-imines was observed. With the aim Of understanding which structure elements are required for this reaction, several model peptides have been prepared according to our recently described methodology, a modification of the 'azirine/oxazolone method', followed by selective isomerization of the peptide thioamides. In addition, attempts to prepare peptides that contain more than one C=S group by the same methodology also led to the formation of 1,3-thiazol-5(4H)-imine-containing derivatives. An additional C=S group can be introduced into the peptide, when the 1,3-thiazol-5(4H)-imines were treated with H2S, although mixtures of epimers were obtained. The structures of an endothiohexapeptide, two 1,3-thiazol-5(4H)-imine, and two peptides containing a 1,3-thiazol5(4H)-imine moiety have been established by X-ray crystal-structure analysis.