H-Leu-Ala-Pro-OH | 132548-09-5

• 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: H-Leu-Ala-Pro-OH
• 英文别名: Leu-Ala-Pro-OH；Leu-Ala-Pro；LAP；(2S)-1-[(2S)-2-[[(2S)-2-azaniumyl-4-methylpentanoyl]amino]propanoyl]pyrrolidine-2-carboxylate
• CAS: 132548-09-5
• 化学式: C₁₄H₂₅N₃O₄
• 分子量: 299.37
• InChiKey: WSGXUIQTEZDVHJ-DCAQKATOSA-N

物化性质

• 沸点：
  565.7±50.0 °C(Predicted)
• 密度：
  1.199±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -2.9
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  113
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  H-Leu-Ala-Pro-OH 在 substituted Grubbs-type ruthenium carbene complex 盐酸 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 生成 methyl (2S)-1-[(2S)-2-[[(2S)-4-methyl-2-[[(E)-4-[(2R,3R,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]but-2-enoyl]amino]pentanoyl]amino]propanoyl]pyrrolidine-2-carboxylate
  参考文献：
  名称：

  Cross‐metathesis ofC‐Glycosides and Peptides

  摘要：

  Peptides bearing an acryloyl residue at their N-terminus were coupled with various C-glycosides in an equimolar ratio via cross-metathesis. The newly formed olefin was obtained with high E/Z selectivity in satisfying to high yields with low homodimerization of the starting materials. The posttranslational cross-metathesis approach was shown to be suitable for the combinatorial synthesis of a small library of C-glycopeptides.

  DOI：

  10.1080/00397910701481146
• 作为产物：
  描述：

  benzyl (2S)-1-[(2S)-2-[[(2S)-4-methyl-2-(phenylmethoxycarbonylamino)pentanoyl]amino]propanoyl]pyrrolidine-2-carboxylate 生成 H-Leu-Ala-Pro-OH
  参考文献：
  名称：

  XALIKOV, SH. X.;ISMOILOV, M. I.;SHAXMATOV, A. N., BIOORGAN. XIMIYA, 16,(1990) N1, S. 1477-1487

  摘要：

  DOI：

文献信息

• Catalytic Properties of X-Prolyl Dipeptidyl Aminopeptidase from<i>Lactococcus lactis</i>subsp.<i>cremoris</i>nTR
  作者：Tsong-Rong Yan、Shih-Ching Ho、Chia-Lung Hou

  DOI：10.1271/bbb.56.704

  日期：1992.1

  An X-prolyl dipeptidyl aminopeptidase (X-PDAP; EC 3.4.14.5) was identified to be loosely bound on the inner cell membrane fraction of Lactococcus lactis subsp. cremoris nTR. The biosynthesis of X-PDAP was continuously increased before the late-log growth phase of the bacteria. Both Gly-Pro-pNA and Ala-Ala-pNA were hydrolyzed by X-PDAP; the kcat/Km value of the former was about 10-fold that of the latter. The Ki of X-Pro and Pro-X were more specific to X-PDAP than those of X-Ala. The enzyme splitting a dipeptide sequentially from β-casomorphin as a model catalytic pattern was identified and some properties of the enzyme were further characterized.

  在Lactococcus lactis subsp. cremoris nTR的内细胞膜组分上，鉴定出一种松散结合的X-脯氨酰二肽二肽基氨肽酶（X-PDAP；EC 3.4.14.5）。在细菌的后期对数生长阶段之前，X-PDAP的生物合成不断增加。X-PDAP可以水解Gly-Pro-pNA和Ala-Ala-pNA，前者的kcat/Km值约为后者的10倍。X-Pro和Pro-X的Ki比X-Ala更特异于X-PDAP。鉴定出一种以β-酪啡肽为模型的催化模式连续切割二肽的酶，并进一步表征了该酶的一些性质。
• Ring-Opening Cross-Metathesis (ROCM) as a Novel Tool for the Ligation of Peptides
  作者：Simon Michaelis、Siegfried Blechert

  DOI：10.1002/chem.200601183

  日期：2007.3.5

  manner succeeds with low catalyst loadings, with no need for any excess of one reaction partner and with a high compatibility with a wide range of functional groups. Furthermore, the stereochemical outcome of the ROCM can easily be controlled by using a Hoveyda-type chiral catalyst. Fluorescence labelling of peptides is possible in the same manner when using a cyclic olefin equipped with a fluorescence

  据报道，开环交叉复分解（ROCM）作为肽单元的位点特异性连接的新型工具的发展。由ROCM产生的在连接位点上产生的结构单元类似于脯氨酸以及其他已知的β-转稳定结构单元。在温和的反应条件下，ROCM在各种带有环状烯烃的肽与氨基酸或肽之间产生高收率。易位的肽交叉配偶体分别通过N和C末端和侧链配备有双键，以允许合成线性，非线性和支链肽。以这种方式进行的连接以低的催化剂负载量成功，不需要任何过量的一种反应伴侣，并且与多种官能团具有高度的相容性。此外，使用Hoveyda型手性催化剂可以很容易地控制ROCM的立体化学结果。当使用配备有荧光标记物的环烯烃时，可以以相同的方式对肽进行荧光标记。
• XALIKOV, SH. X.;ISMOILOV, M. I.;SHAXMATOV, A. N., BIOORGAN. XIMIYA, 16,(1990) N1, S. 1477-1487
  作者：XALIKOV, SH. X.、ISMOILOV, M. I.、SHAXMATOV, A. N.

  DOI：——

  日期：——
• Cross‐metathesis of<i>C</i>‐Glycosides and Peptides
  作者：Peter Brüchner、David Koch、Ulrike Voigtmann、Siegfried Blechert

  DOI：10.1080/00397910701481146

  日期：2007.8

  Peptides bearing an acryloyl residue at their N-terminus were coupled with various C-glycosides in an equimolar ratio via cross-metathesis. The newly formed olefin was obtained with high E/Z selectivity in satisfying to high yields with low homodimerization of the starting materials. The posttranslational cross-metathesis approach was shown to be suitable for the combinatorial synthesis of a small library of C-glycopeptides.