Boc-Nle-Asp(OBzl)-Phe-NH2 | 65864-24-6

• 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: Boc-Nle-Asp(OBzl)-Phe-NH2
• 英文别名: benzyl (3S)-4-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-3-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoyl]amino]-4-oxobutanoate
• CAS: 65864-24-6
• 化学式: C₃₁H₄₂N₄O₇
• 分子量: 582.697
• InChiKey: GFUIFDPPUINGIG-SDHOMARFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  42.0
• 可旋转键数：
  15.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  165.92
• 氢给体数：
  4.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  Boc-Nle-Asp(OBzl)-Phe-NH2 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 为溶剂， 反应 3.0h， 以89%的产率得到Boc-Nle-Asp-Phe-NH2
  参考文献：
  名称：

  Synthesis and binding affinities of cyclic and related linear analogs of CCK8 selective for central receptors

  摘要：

  To investigate the role of the sulfate group and the influence of cyclization on the biological properties of conformationally constrained CCK8 analogues, three series of compounds were synthesized: Boc-Glu-Tyr-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (1), Boc-Glu-Tyr(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (2), and Boc-Glu-Tyr-(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (3) (series A); Boc-D-Glu-Tyr-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (4), Boc-D-Glu-Tyr(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (5), Boc-D-Glu-Tyr(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (6), and Boc-D-Glu-Tyr(SO3H)-Nle-D-Nle-Trp-Asp-Phe-NH2 (7) (series B); and Boc-gamma-D-Glu-Tyr-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (8), Boc-gamma-D-Glu-Tyr(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (9), and Boc-gamma-D-Glu-Tyr-(SO3H)-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2 (10) (series C). The selectivity of these peptides was studied by measuring their ability to displace [3H]propionyl-CCK8 from guinea pig brain and pancreatic membranes. All the peptides displayed low affinities (KI values around 10(-6) M) for the pancreatic receptors (A type). In contrast, both sulfated and nonsulfated cyclic analogues displayed high affinities for central-type binding sites (B type), especially compounds belonging to series C [KI(8) = 4.7 nM and KI(9) = 0.56 nM]. In all series the linear analogues had relatively poor affinities (KI approximately 300 nM) for B-type receptors. Compound 9 was the most potent (KI = 0.56 nM) and selective [KI(pancreas)/KI(brain) = 4464] for central-type CCK receptors of guinea pig. The cyclization of the N-terminal region of CCK8 permits one therefore to obtain probes for central receptors, and small changes directed toward the cyclic part modulate the affinity for these receptors.

  DOI：

  10.1021/jm00126a007
• 作为产物：
  描述：

  H-Asp(OBn)-Phe-NH2 trifluoroacetate 、 Boc-Nle-ONp 在 1-羟基苯并三唑 、 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以90%的产率得到Boc-Nle-Asp(OBzl)-Phe-NH2
  参考文献：
  名称：

  通过CCK26-33的环状及相关线性类似物研究外周胆囊收缩素受体异质性：合成和生物学特性。

  摘要：

  通过替换柔性Gly29残基，研究了CCK26-33 [Asp-Tyr（SO3H）-Met-Gly-Trp-Met-Asp-Phe-NH2]（CCK8）周围受体的可能异质性在CCK8折叠中，通过Boc [Nle28，31] CCK27-33中的D-Lys残基，具有与CCK8同样活性的衍生物。线性肽Boc-Asp-Tyr（SO3H）-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2通过Asp26和D-Lys29侧链之间的酰胺键形成环化，得到肽Boc-Asp -Tyr（SO3H）-Nle-D-Lys-Trp-Nle-Asp-Phe-NH2。已显示类似物1和2刺激大鼠胰腺淀粉酶的分泌，其效力分别比CCK8低40和80倍。相反，两种肽均作为CCK8诱导的豚鼠回肠收缩的弱拮抗剂（EC50约为10（-5）M）。尽管它们的C末端Asp32残基发生酰胺化，但从1和2中除去苯丙氨酸获得的肽3和4在所

  DOI：

  10.1021/jm00389a002

文献信息

• Synthesis and biological activities of pseudopeptide analogs of the C-terminal heptapeptide of cholecystokinin. On the importance of the peptide bonds
  作者：Marc Rodriguez、Marie Francoise Lignon、Marie Christine Galas、Pierre Fulcrand、Christiane Mendre、Andre Aumelas、Jeanine Laur、Jean Martinez

  DOI：10.1021/jm00391a017

  日期：1987.8

  A series of pseudopeptide analogues of the C-terminal heptapeptide of cholecystokinin in which each peptide bond, one at a time, has been replaced by a CH2NH bond were synthesized: Z-Tyr(SO3-)-Nle-Gly-Trp-Nle-Asp psi-(CH2NH)Phe-NH2 (1), Z-Tyr(SO3-)-Nle-Gly-Trp-Nle psi (CH2NH)Asp-Phe-NH2 (2), Z-Tyr(SO3-)-Nle-Gly-Trp psi-(CH2NH)Nle-Asp-Phe-NH2 (3), Z-Tyr(SO3-)-Nle-Gly psi(CH2NH)Trp-Nle-Asp-Phe-NH2 (4)

  合成了胆囊收缩素C端七肽的一系列伪肽类似物，其中每个肽键一次被一个CH2NH键取代：Z-Tyr（SO3-）-Nle-Gly-Trp-Nle- Asp psi-（CH2NH）Phe-NH2（1），Z-Tyr（SO3-）-Nle-Gly-Trp-Nle psi（CH2NH）Asp-Phe-NH2（2），Z-Tyr（SO3-）-Nle -Gly-Trp psi-（CH2NH）Nle-Asp-Phe-NH2（3），Z-Tyr（SO3-）-Nle-Gly psi（CH2NH）Trp-Nle-Asp-Phe-NH2（4），Z- Tyr（SO3-）-Nle psi-（CH2NH）Gly-Trp-Nle-Asp-Phe-NH2（5），Z-Tyr（SO3-）-Met-Gly-Trp-Nle-Asp psi（CH2NH）Phe- NH2（6），Z-Tyr-（SO3-）-Met-Gly-Trp-Nle psi（
• CCK-B agonist or antagonist activities of structurally hindered and peptidase-resistant Boc-CCK4 derivatives
  作者：P. J. Corringer、J. H. Weng、B. Ducos、C. Durieux、P. Boudeau、A. Bohme、B. P. Roques

  DOI：10.1021/jm00053a022

  日期：1993.1

  Replacement of Met31 by (N-Me)Nle in CCK8 or CCK4 has been shown to improve the affinity and selectivity for CCK-B receptors. In order to obtain molecules with enhanced bioavailability, two novel series of protected tetrapeptides of the general formula Boc-Trp30-X-Asp-Y33 have been developed. Introduction of (N-Me)Nle and the bulky, aromatic naphthylalaninamide (Nal-NH2) in positions X and Y, respectively, does not greatly modify the affinity for guinea pig brain CCK-B receptors. In contrast, incorporation of hindering N-methyl amino acids such as (N-Me)Phe, (N-Me)Phg, or (N-Me)Chg, but not their non-methylated counterparts, in position X induced a large decrease in affinity for the CCK-B binding sites. Among the various peptides synthesized, Boc-[(N-Me)Nle31,1Nal-NH233]CCK4 (2) (K(I) = 2.8 nM), Boc-[Phg31,1Nal-NH233]CCK4 (15) (K(I) = 14 nM), and Boc-[Phg31,1Nal-N(CH3)233]CCK4 (17) (K(I) = 39 nM) displayed good affinities for brain CCK-B receptors and had good selectivity ratios. These pseudopeptides, in which the presence of unnatural and hydrophobic residues is expected to improve their penetration of the central nervous system, were shown to be very resistant to brain peptidases. Interestingly, whereas compounds 2 and 15 proved to be full agonists for rat hippocampal CCK-B receptors when measured in an electrophysiological assay, compound 17 behaved as a potent antagonist in the same test and displayed a good affinity in rat brain K(I)(CCK-B) = 51 nM as compared to the Merck antagonist L365,260, K(I)(CCK-B) = 12 nM. This illustrates a simple means to obtain CCK-B antagonists and suggests that the free, CONH2 group plays a critical role in the recognition of the agonist date of brain CCK-B receptors.
• Peptide and pseudopeptide analogues of cholecystokinin, chemical modifications of the met28-gly29 region
  作者：C. Mendre、M. Rodriguez、J. Laur、A. Aumelas、J. Martinez

  DOI：10.1016/s0040-4020(01)86144-5

  日期：1988.1
• Synthesis and biological activities of cholecystokinin analogues substituted in position 30 by 3-(1-naphthyl)-l-alanine [Nal(1)] or 3-(2-naphthyl)-l-alanine [Nal(2)]
  作者：M Rodriguez、N Bernad、MC Galas、MF Lignon、J Laur、A Aumelas、J Martinez

  DOI：10.1016/0223-5234(91)90056-s

  日期：1991.4

  Acetyl derivatives of ethyl esters of 3-(1-naphthyl)-D,L-alanine and 3-(2-naphthyl)-D,L-alanine were synthesized through a malonic condensation. Resolution of these derivatives by subtilisin Carlsberg followed by acid hydrolysis afforded the 2 optical isomers of 3-(1-naphthyl)-alanine [Nal(1)] and 3-(2-naphthyl)-alanine [Nal(2)]. The L enantiomers of these amino acids were incorporated into the sequence of cholecystokinin in place of the tryptophan in position 30. The cholecystokinin analogues thus obtained behaved as full agonists, with reduced potencies on rat pancreatic acini and on guinea pig brain membranes, by about one order of magnitude for the Nal(2) derivative and by 2 orders of magnitude for the Nal(1) derivative, as compared to the potent parent compound Boc-Tyr(SO3H)-Nle-Gly-Trp-Nle-Asp-Phe-NH2.
• CHARPENTIER, B.;DOR, A.;ROY, P.;ENGLAND, P.;PHAM, H.;DURIEUX, C., J. MED. CHEM., 32,(1989) N, C. 1184-1190
  作者：CHARPENTIER, B.、DOR, A.、ROY, P.、ENGLAND, P.、PHAM, H.、DURIEUX, C.

  DOI：——

  日期：——