(3R,6S)-3-Allyl-1-benzyl-3-(2-chloromethyl-allyl)-5-ethoxy-6-isopropyl-3,6-dihydro-1H-pyrazin-2-one | 699009-79-5

• 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: (3R,6S)-3-Allyl-1-benzyl-3-(2-chloromethyl-allyl)-5-ethoxy-6-isopropyl-3,6-dihydro-1H-pyrazin-2-one
• CAS: 699009-79-5
• 化学式: C₂₃H₃₁ClN₂O₂
• 分子量: 402.964
• InChiKey: SIBVGVIKRBSIHM-NZQKXSOJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.99
• 重原子数：
  28.0
• 可旋转键数：
  9.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  41.9
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  (3R,6S)-3-Allyl-1-benzyl-3-(2-chloromethyl-allyl)-5-ethoxy-6-isopropyl-3,6-dihydro-1H-pyrazin-2-one 在 盐酸 、 氨 、 lithium 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 乙醇 、 叔丁醇 为溶剂， 反应 12.08h， 生成 (S)-2-[(2R,6R)-2-Allyl-2,6-diamino-6-((S)-1-ethoxycarbonyl-2-methyl-propylcarbamoyl)-4-methylene-hexanoylamino]-3-methyl-butyric acid ethyl ester; compound with GENERIC INORGANIC NEUTRAL COMPONENT
  参考文献：
  名称：

  Enantioselective synthesis of pseudotripeptides incorporating a γ-methylene derivative of 2,6-diaminopimelic acid: Part 6

  摘要：

  An efficient enantioselective synthesis of pseudotripeptides 5, 8a-d and 13a and b incorporating a 2,6-diamino-4-methylene-1,7-heptandioic acid residue, has been accomplished starting from the glycine derived chiral synthon 1 (from L-valine). The absolute configuration of the new stereocentres was assigned on the basis of H-1 NMR spectra. The geometry of derivative 4 was deduced on the basis of H-1 NMR parameters (delta(NH) value, temperature coefficient, delta(NH) change upon addition of DMSO or CD3OD, NOE studies) and IR spectra. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2004.02.005
• 作为产物：
  描述：

  (6S)-1-benzyl-5-ethoxy-3,6-dihydro-6-isopropylpyrazine-2-one 在 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 为溶剂， 生成 (3R,6S)-3-Allyl-1-benzyl-3-(2-chloromethyl-allyl)-5-ethoxy-6-isopropyl-3,6-dihydro-1H-pyrazin-2-one
  参考文献：
  名称：

  Enantioselective synthesis of pseudotripeptides incorporating a γ-methylene derivative of 2,6-diaminopimelic acid: Part 6

  摘要：

  An efficient enantioselective synthesis of pseudotripeptides 5, 8a-d and 13a and b incorporating a 2,6-diamino-4-methylene-1,7-heptandioic acid residue, has been accomplished starting from the glycine derived chiral synthon 1 (from L-valine). The absolute configuration of the new stereocentres was assigned on the basis of H-1 NMR spectra. The geometry of derivative 4 was deduced on the basis of H-1 NMR parameters (delta(NH) value, temperature coefficient, delta(NH) change upon addition of DMSO or CD3OD, NOE studies) and IR spectra. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2004.02.005