三七素 | 7554-90-7

• 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: 三七素
• 英文名称: β-N-oxalyl-α,β-diaminopropionic acid
• 英文别名: 2-Amino-3-(carboxyformamido)propanoic acid；2-amino-3-(oxaloamino)propanoic acid
• CAS: 7554-90-7
• 化学式: C₅H₈N₂O₅
• 分子量: 176.129
• InChiKey: NEEQFPMRODQIKX-UHFFFAOYSA-N

物化性质

• 密度：
  1.596±0.06 g/cm3 (20 ºC 760 Torr)
• 溶解度：
  溶于氯仿、二氯甲烷、乙酸乙酯、DMSO、丙酮等。
• 物理描述：
  Solid
• 熔点：
  206°C

计算性质

• 辛醇/水分配系数(LogP)：
  -4.1
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  130
• 氢给体数：
  4
• 氢受体数：
  6

安全信息

• 海关编码：
  2924199090

制备方法与用途

生物活性 (Rac)-Dencichin（2-氨基-3-(羧基甲酰胺基)丙酸）是 Dencichin 的消旋体。Dencichin 是从三七中分离出的一种非蛋白氨基酸，能够抑制 HIF-prolyl hydroxylase-2（PHD-2）的活性。

反应信息

• 作为反应物：
  描述：

  三七素 在 pH 12.1 作用下， 生成 beta-N-草酰氨基丙氨酸
  参考文献：
  名称：

  The mechanism of the rearrangement of the neurotoxin β-odap to α-odap

  摘要：

  The diketopiperazine suggested to be the intermediate during the spontaneous isomerization of beta-ODAP and alpha-ODAP was synthesized. Its behaviour was studied at selected pH values and provided evidence that its natural occurrence is unlikely. 2-Hydroxy-imidazolidine-2,4-dicarboxylic acid (for the rearrangement beta-ODAP <---->alpha-ODAP) or 2-hydroxy-pyrimidine-2,4-dicarboxylic acid (for the rearrangement gamma-ODAB <---->alpha-ODAB) are suggested to be the unstable intermediates.

  DOI：

  10.1016/s0031-9422(00)97018-3
• 作为产物：
  描述：

  L-2,3-二氨基丙酸盐酸盐 、 草酸二乙酯 生成 三七素
  参考文献：
  名称：

  Phytochemistry 1977, 16, 1211-1215

  摘要：

  DOI：

文献信息

• Method for Producing Water-Absorbing Polymer Particles with High Swelling Rate and High Centrifuge Retention Capacity with Simultaneously High Permeability of the Swollen Gel Bed
  申请人：BASF SE

  公开号：US20150376318A1

  公开（公告）日：2015-12-31

  A process for producing water-absorbing polymer particles having high free swell rate and high centrifuge retention capacity with simultaneously high permeability of the swollen gel bed by polymerization of an aqueous monomer solution in a polymerization reactor having at least two shafts (kneaders) which rotate in an axially parallel manner, subsequent extrusion at high temperatures and thermal surface postcrosslinking.

  一种生产高自由膨胀率和高离心保留能力的吸水聚合物颗粒的方法，通过在至少具有两个轴（揉捏器）以轴向平行方式旋转的聚合反应器中聚合水性单体溶液，随后在高温下挤出和热表面后交联，以同时具有膨胀凝胶床的高渗透性。
• EUERBY, MELVIN R.;NUNN, PETER B.;PARTRIDGE, LYNDA Z., J. CHROMATOGR., 466,(1989) C. 407-414
  作者：EUERBY, MELVIN R.、NUNN, PETER B.、PARTRIDGE, LYNDA Z.

  DOI：——

  日期：——
• Phytochemistry 1977, 16, 1211-1215
  作者：

  DOI：——

  日期：——
• The mechanism of the rearrangement of the neurotoxin β-odap to α-odap
  作者：André De Bruyn、Christian Becu、Fernand Lambein、Naod Kebede、Berhanu Abegaz、Peter B. Nunn

  DOI：10.1016/s0031-9422(00)97018-3

  日期：1994.5

  The diketopiperazine suggested to be the intermediate during the spontaneous isomerization of beta-ODAP and alpha-ODAP was synthesized. Its behaviour was studied at selected pH values and provided evidence that its natural occurrence is unlikely. 2-Hydroxy-imidazolidine-2,4-dicarboxylic acid (for the rearrangement beta-ODAP <---->alpha-ODAP) or 2-hydroxy-pyrimidine-2,4-dicarboxylic acid (for the rearrangement gamma-ODAB <---->alpha-ODAB) are suggested to be the unstable intermediates.