4-guanyl-L-phenylalanine hydrochloride | 86879-06-3

• 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: 4-guanyl-L-phenylalanine hydrochloride
• 英文别名: (2S)-2-amino-3-[4-(diaminomethylideneamino)phenyl]propanoic acid;hydron;chloride
• CAS: 86879-06-3
• 化学式: C₁₀H₁₄N₄O₂*ClH
• 分子量: 258.708
• InChiKey: FGUIHKZJZSDDHP-QRPNPIFTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.03
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  128
• 氢给体数：
  5
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  β-naphthylamide of p-guanidino-L-phenylalanine hydrochloride 在 phosphate buffer 、 bovine leukocyte aminopeptidase (BL-APase) 作用下， 生成 4-guanyl-L-phenylalanine hydrochloride
  参考文献：
  名称：

  .BETA.-Naphthylamides of guanidinophenyl amino acids as substrates of aminopeptidases.

  摘要：

  合成了对-胍基-L-苯丙氨酸（GPA）和对-胍基-DL-苯甘氨酸（GPG）的β-萘甲酰胺，并将其作为牛白细胞氨肽酶（BL-APase）和猪肝氨肽酶 B（PL-APaseB）的底物与 L-精氨酸β-萘甲酰胺（Arg-βNA）进行了比较试验。BL-APase 催化 GPA-βNA 的水解速度与 Arg-βNA 一样快，而 GPG-βNA 的水解速度要慢得多。BL-AP 酶水解 GPA-βNA 的特异性常数（Vmax/Km）略大于水解 Arg-βNA。根据两种 β-萘甲酰胺底物 Km 值的比较，GPA-βNA 侧链中的苯环被认为有助于该底物与该酶特异性侧的结合。在底物浓度高于约 0.1 mM 的范围内，观察到 BL-APase 在水解 GPA-βNA 时存在底物抑制作用。PL-APaseB 不水解 GPA-βNA 也不水解 GPG-βNA，而且它们抑制该酶水解 Arg-βNA。预计 GPA-βNA 将成为研究氨基肽酶结合和催化特异性的有用底物。

  DOI：

  10.1248/cpb.36.1205

文献信息

• Asymmetric Synthesis of Conformationally Restricted <scp>l</scp>-Arginine Analogues as Active Site Probes of Nitric Oxide Synthase
  作者：Robert N. Atkinson、Lisa Moore、Joseph Tobin、S. Bruce King

  DOI：10.1021/jo982161f

  日期：1999.5.1

  Using the catalytic asymmetric Sharpless carbamate aminohydroxylation, conformationally restricted L-arginine and L-homoarginine derivatives (5-8) were prepared in good enantiomeric excess to investigate the binding requirements of L-arginine-based compounds with nitric oxide synthase. The L-arginine derivatives (5 and 6) inhibited both the inducible and neuronal isoforms of nitric oxide synthase with little isoform selectivity (5, IC50 = 42 and 144 mu M, 6, 8 and 12 mu M, respectively). The guanidine-containing compound (5) did not act as a nitric oxide producing substrate for nitric oxide synthase. The ability of these compounds to interact with the enzyme supports the idea that L-arginine-based inhibitors bind to the enzyme in a folded conformation. The L-homoarginine derivatives (7 and 8) did not interact with the enzyme as either substrates or inhibitors. The two-carbon L-arginine homologue (9), prepared from L-phenylalanine, demonstrated the greatest isoform selective inhibition of the compounds examined (IC50(iNOS) = 19 and IC50- (nNOS) = 147 mu M, IC50(nNOS)/IC(50)i(NOS) = 7.7). These results suggest isoform selective inhibition may be related to the folded conformations required for binding of these higher L-arginine homologues.