methyl (S)-N-[(R/S)-2-methylbutanoyl]prolinate | 302921-04-6

• 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: methyl (S)-N-[(R/S)-2-methylbutanoyl]prolinate
• 英文别名: 2-methyl-butyryl pyrrolidine methyl ester
• CAS: 302921-04-6
• 化学式: C₁₁H₁₉NO₃
• 分子量: 213.277
• InChiKey: YFFCHNSCSSMHQD-GKAPJAKFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  15.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  46.61
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  methyl (S)-N-[(R/S)-2-methylbutanoyl]prolinate 在 劳森试剂 作用下， 以 甲苯 为溶剂， 反应 1.25h， 以70%的产率得到methyl (S)-N-[(R/S)-2-methylbutanethioyl]prolinate
  参考文献：
  名称：

  Synthesis and Use of 2H-Azirin-3-amines as Dipeptide Synthons

  摘要：

  The synthesis of the new 2H-azirin-3-amines ('3-amino-2H-azirines') 11, 20, 28, and 33 as dipeptide synthons is described. The reactions of the starting amides with Lawesson reagent gave the corresponding thioamides, and consecutive treatment with COCl2, 1,4-diazabicyclo[2.2.2]octane (DABCO), and NaN3 led to the desired products. It is shown that these 2H-azirin-3-amines can conveniently be used as building blocks of the dipeptides Aib-(Me)Axx (Axx = alanine, valine), Aib-Homoproline, and Iva-Pro in the synthesis of several model peptides. However, some limitations apply for the synthesis of such 2H-azirin-3-amines. The starting material for the azirine synthesis, the corresponding thioamides, cannot generally be synthesized, and the 2H-azirin-3-amines could not be obtained in all cases from the thioamides prepared.

  DOI：

  10.1002/1522-2675(200203)85:3<885::aid-hlca885>3.0.co;2-z
• 作为产物：
  描述：

  L-脯氨酸 、 alkaline earth salt of/the/ methylsulfuric acid 在 氯化亚砜 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 16.0h， 生成 methyl (S)-N-[(R/S)-2-methylbutanoyl]prolinate
  参考文献：
  名称：

  Synthesis and Use of 2H-Azirin-3-amines as Dipeptide Synthons

  摘要：

  The synthesis of the new 2H-azirin-3-amines ('3-amino-2H-azirines') 11, 20, 28, and 33 as dipeptide synthons is described. The reactions of the starting amides with Lawesson reagent gave the corresponding thioamides, and consecutive treatment with COCl2, 1,4-diazabicyclo[2.2.2]octane (DABCO), and NaN3 led to the desired products. It is shown that these 2H-azirin-3-amines can conveniently be used as building blocks of the dipeptides Aib-(Me)Axx (Axx = alanine, valine), Aib-Homoproline, and Iva-Pro in the synthesis of several model peptides. However, some limitations apply for the synthesis of such 2H-azirin-3-amines. The starting material for the azirine synthesis, the corresponding thioamides, cannot generally be synthesized, and the 2H-azirin-3-amines could not be obtained in all cases from the thioamides prepared.

  DOI：

  10.1002/1522-2675(200203)85:3<885::aid-hlca885>3.0.co;2-z

文献信息

• ——
  作者：Yorianta Sasaerila、Regine Gries、Gerhard Gries、Grigori Khaskin、Skip King、Teo Chor Boo

  DOI：10.1023/a:1005561127155

  日期：——

  This study was undertaken to identify sex pheromone components of nettle caterpillars Darna trima and Darna bradleyi (Lepidoptera: Limacodidae) whose larvae defoliate oil palm, Elaeis guineensis, in southeast Asia. Coupled gas chromatographic-electroantennographic detection (GC-EAD) analyses of pheromone gland extracts revealed two antennally active compounds produced by female D. trima and two by female D. bradleyi. Molecular structures of these candidate pheromone components were identified by electron-impact and chemical-ionization mass spectrometry; retention-index calculations on DB-5, DB-23, and DB-210 columns; microanalytical treatments, as well as syntheses of "auxilliary" compounds that facilitated identification of the compounds. The compounds from D. trima were 2-methylbutyl (E)-7,9-decadienoate (A) and (E)-2-hexenyl (E)-7,9-decadienoate (B); from D. bradleyi we identified methyl (E)-7,9-decadienoate (C), and isobutyl (E)-7,9-decadienoate (D). In field experiments in Malaysia, (S)-2-methylbutyl (E)-7,9-decadienoate (SA) in combination with B proved to be essential and synergistic pheromone components for attraction of male D. trima. (R)-2-Methylbutyl (E)-7,9-decadienoate (RA) had no behavioral activity. Compound D singly attracted male D. bradleyi, but addition of C to D at a 1:10 ratio significantly enhanced attractiveness of the bait. Synthetic pheromone blends were more effective trap baits than unmated female moths and could be developed for monitoring populations of D. trima and D. bradleyi in Asian oil palm plantations.