D-Phe-cyclo(Cys-Tyr-D-Trp-Lys-Val-Pen)-Thr-NH2

• 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: D-Phe-cyclo(Cys-Tyr-D-Trp-Lys-Val-Pen)-Thr-NH2
• 英文别名: H-D-Phe-Cys(1)-Tyr-D-Trp-Lys-Val-Pen(1)-Thr-NH2；(4R,7S,10S,13R,16S,19R)-10-(4-aminobutyl)-N-[(2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl]-19-[[(2R)-2-amino-3-phenylpropanoyl]amino]-16-[(4-hydroxyphenyl)methyl]-13-(1H-indol-3-ylmethyl)-3,3-dimethyl-6,9,12,15,18-pentaoxo-7-propan-2-yl-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carboxamide
• 化学式: C₅₂H₇₁N₁₁O₁₀S₂
• 分子量: 1074.34
• InChiKey: UVDNROSOHXVTMM-NYZOOCQHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  75
• 可旋转键数：
  17
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  406
• 氢给体数：
  13
• 氢受体数：
  14

反应信息

• 作为产物：
  描述：

  N-Boc-O-苄基-L-苏氨酸 在 ammonium acetate 、 potassium hexacyanoferrate(III) 作用下， 反应 1.0h， 生成 D-Phe-cyclo(Cys-Tyr-D-Trp-Lys-Val-Pen)-Thr-NH2
  参考文献：
  名称：

  Design and synthesis of conformationally constrained somatostatin analogs with high potency and specificity for .mu. opioid receptors

  摘要：

  A series of cyclic, conformationally constrained peptides related to somatostatin were designed and synthesized in an effort to develop highly selective and potent peptides for the mu opioid receptor. The following new peptides were prepared and tested for their mu opioid receptor potency and selectively in rat brain binding assays: D-Phe-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (2, CTOP); D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (3, CTAP); D-Phe-Cys-Tyr-D-Trp-Nle-Thr-Pen-Thr-NH2 (4); D-Phe-Cys-Tyr-D-Trp-Lys-Val-Pen-Thr-NH2 (5); D-Phe-Cys-Tyr-D-Trp-Lys-Gly-Pen-Thr-NH2 (6); D-Phe-Cys-Tyr-Trp-Lys-Thr-Pen-Thr-NH2 (7); D-Tyr-Cys-Tyr-D-Trp-Lys-Thr-Cys-Thr-OH (8); D-PhGly-Cys-Tyr-D-Trp-Lys-Thr-Pen-Thr-NH2 (9); and D-PhGly-Pen-Phe-D-Trp-Lys-Thr-Cys-Thr-OH (10). The most selective peptide, 2 (CTOP), displayed both high affinity (IC50 = 3.5 nM) and exceptional selectivity (IC50 delta/IC50 mu = 4,000) for mu opioid receptors. Furthermore, 2 exhibited very low affinity for somatostatin receptors in the rat brain (IC50 greater than 24,000 nM), with an IC50 somatostatin/IC50 mu receptor selectivity of 8,750. These conformationally constrained cyclic peptides should provide new insight into the structural and conformational requirements for the mu opioid receptor and the physiological role of this receptor.

  DOI：

  10.1021/jm00161a037

文献信息

• Potent Antagonists of Somatostatin:  Synthesis and Biology
  作者：Simon J. Hocart、Rahul Jain、William A. Murphy、John E. Taylor、Barry Morgan、David H. Coy

  DOI：10.1021/jm970730q

  日期：1998.3.1

  The search for synthetic analogues of somatostatin (SRIF) which exhibit selective affinities for the five known receptor subtypes (sst(1-5)) has generated a large number of potent agonist analogues. Many of these agonists display good subtype selectivities and affinities for the subtypes 2, 3, and 5, with very few selective for sst(1) or sst(4). Until the recent report by Bass and co-workers (Mel. Pharmacol. 1996, 50, 709-715; erratum, Mol. Pharmacol. 1997, 51, 170), no true antagonists had been discovered, let alone any displaying differential receptor subtype selectivity. In this present study, we explore the effect of this putative L-5,D-6 antagonist motif on various series of somatostatin agonist analogues, both linear and cyclic. It was found that many D-5,L-6 agonists could be converted into competitive antagonists by applying this motif, the most potent of which was H-Nal-cyclo[DCys-Pal-DTrp-Lys-Val-Cys]-Nal-NH2 (32). This antagonist was selective for hsst(2) with an affinity of 75 nM and an IC50 of 15.1 nM against SRIF-14 in a rat in vitro antagonist bioassay. Receptor-selective somatostatin antagonists should provide valuable tools for characterizing the many important physiological functions of this neuropeptide.
• Design and synthesis of conformationally constrained somatostatin analogs with high potency and specificity for .mu. opioid receptors
  作者：John T. Pelton、Wieslaw Kazmierski、Karoly Gulya、Henry I. Yamamura、Victor J. Hruby

  DOI：10.1021/jm00161a037

  日期：1986.11

  A series of cyclic, conformationally constrained peptides related to somatostatin were designed and synthesized in an effort to develop highly selective and potent peptides for the mu opioid receptor. The following new peptides were prepared and tested for their mu opioid receptor potency and selectively in rat brain binding assays: D-Phe-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (2, CTOP); D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (3, CTAP); D-Phe-Cys-Tyr-D-Trp-Nle-Thr-Pen-Thr-NH2 (4); D-Phe-Cys-Tyr-D-Trp-Lys-Val-Pen-Thr-NH2 (5); D-Phe-Cys-Tyr-D-Trp-Lys-Gly-Pen-Thr-NH2 (6); D-Phe-Cys-Tyr-Trp-Lys-Thr-Pen-Thr-NH2 (7); D-Tyr-Cys-Tyr-D-Trp-Lys-Thr-Cys-Thr-OH (8); D-PhGly-Cys-Tyr-D-Trp-Lys-Thr-Pen-Thr-NH2 (9); and D-PhGly-Pen-Phe-D-Trp-Lys-Thr-Cys-Thr-OH (10). The most selective peptide, 2 (CTOP), displayed both high affinity (IC50 = 3.5 nM) and exceptional selectivity (IC50 delta/IC50 mu = 4,000) for mu opioid receptors. Furthermore, 2 exhibited very low affinity for somatostatin receptors in the rat brain (IC50 greater than 24,000 nM), with an IC50 somatostatin/IC50 mu receptor selectivity of 8,750. These conformationally constrained cyclic peptides should provide new insight into the structural and conformational requirements for the mu opioid receptor and the physiological role of this receptor.