2-(2-tert-butoxycarbonylamino-4-methyl-pentanoylamino)-3-cyclohexyl-propionic acid methyl ester | 111010-34-5

• 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: 2-(2-tert-butoxycarbonylamino-4-methyl-pentanoylamino)-3-cyclohexyl-propionic acid methyl ester
• CAS: 111010-34-5
• 化学式: C₂₁H₃₈N₂O₅
• 分子量: 398.543
• InChiKey: XFPWRBAUIBPYHR-IRXDYDNUSA-N

物化性质

• 沸点：
  531.7±30.0 °C(Predicted)
• 密度：
  1.044±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.55
• 重原子数：
  28.0
• 可旋转键数：
  8.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  93.73
• 氢给体数：
  2.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  2-(2-tert-butoxycarbonylamino-4-methyl-pentanoylamino)-3-cyclohexyl-propionic acid methyl ester 在 lithium hydroxide 作用下， 以 甲醇 为溶剂， 以94%的产率得到Boc-Leu-Cha-OH
  参考文献：
  名称：

  Synthesis of Second-Generation Sansalvamide A Derivatives: Novel Templates as Potential Antitumor Agents

  摘要：

  We report the synthesis of 34 second-generation Sansalvamide A derivatives. San A derivatives have unique anticancer properties and target multiple cancers, including colon, pancreatic, breast, prostate, and melanoma. As novel templates, the derivatives described herein explore the role of stereochemistry, amide bond geometry, transannular hydrogen bonding, and polarity on antitumor potency. Testing the chemotherapeutic activity of these derivatives against multiple cancer cell lines will provide clear structural motifs and identify conformational space that is important for cytotoxicity. The 34 compounds presented are divided into six series, where five series involve the insertion of D-amino acids in conjunction with four structural features at each of the five positions of the macrocycle. The sixth series involves comparison between all L- and all D-amino acid derivatives with N-methyls placed at each position around the macrocyclic core. The four structural features explored in conjunction with D-amino acids include N-methyl amino acids, aromatic amino acids, polar amino acids, and hydrophobic alkyl amino acids.

  DOI：

  10.1021/jo061830j
• 作为产物：
  描述：

  丁氧羰基--环乙基-丙氨酸-羟基盐酸盐 在 氯化亚砜 、 O‑(6‑chlorobezotriazol‑1‑yl)‑N,N,N,N‑tetramethyluronium hexafluorophosphate 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 生成 2-(2-tert-butoxycarbonylamino-4-methyl-pentanoylamino)-3-cyclohexyl-propionic acid methyl ester
  参考文献：
  名称：

  对人蛋白酶体β2c或β2i亚基有选择性的抑制剂的基于结构的设计。

  摘要：

  亚单位选择性蛋白酶体抑制剂是评估单个蛋白酶体活性位点生物学和医学相关性的有价值的工具。尽管β1c，β1i，β5c和β5i亚基的抑制剂利用了X射线晶体学鉴定的底物结合通道的差异，但由于这些化合物的高度结构相似性，因此尚无法合理设计选择性靶向β2c或β2i的​​化合物两个亚单位。在这里，我们报告了一个化合物库的开发，化学合成和生物学筛选，该过程导致了对β2c和β2i选择性化合物LU-002c的鉴定（4； IC50β2c：8 nM，IC50β2i/β2c：40-倍数）和LU-002i（5; IC50β2i：220 nM，IC50β2c/β2i：45倍）。具有β2人源化酵母蛋白酶体的共晶体结构可可视化对于亚基特异性至关重要的蛋白质-配体相互作用。总而言之，有机合成，基于活性的蛋白质谱分析，酵母诱变和结构生物学使我们能够破译β2底物结合通道的显着差异，并完成了一组亚基选择性蛋白酶体抑制剂的研究。

  DOI：

  10.1021/acs.jmedchem.8b01884

文献信息

• A comprehensive study of Sansalvamide A derivatives: The structure–activity relationships of 78 derivatives in two pancreatic cancer cell lines
  作者：Po-Shen Pan、Robert C. Vasko、Stephanie A. Lapera、Victoria A. Johnson、Robert P. Sellers、Chun-Chieh Lin、Chung-Mao Pan、Melinda R. Davis、Veronica C. Ardi、Shelli R. McAlpine

  DOI：10.1016/j.bmc.2009.07.017

  日期：2009.8

  first report of their activity against two pancreatic cancer cell lines. Our results show that out of 78 compounds, three compounds are worth pursuing as leads, as they show potency of ⩾55% in both cancer cell lines. These three compounds all have a common structural motif, two consecutive d-amino acids and an N-methyl moiety. Further, of these three compounds, two are second-generation structures, indicating

  我们报告了对两种胰腺癌细胞系有活性的 78 种化合物的广泛构效关系 (SAR)。我们对这些化合物的综合评估利用 SAR，使我们能够评估有效化合物的哪些特征对其细胞毒性起关键作用。这是 19 种新的第二代结构的首次报告，其中这些新化合物是从第一代 59 种化合物中设计出来的。测试了这 78 个结构的细胞毒性，这是它们对两种胰腺癌细胞系的活性的首次报告。我们的结果表明，在 78 种化合物中，有 3 种化合物值得作为先导物进行研究，因为它们在两种癌细胞系中都显示出 55% 的效力。这三种化合物都有一个共同的结构基序，两个连续的d-氨基酸和一个N-甲基部分。此外，在这三种化合物中，有两种是第二代结构，这表明我们可以合并和利用第一代的数据来设计第二代的效力。最后，一种类似物在中等纳摩尔范围内，并且在所有报道的 SAn A 衍生物中具有最低的 IC 50。这些类似物与当前的胰腺癌药物没有结构同源性，并
• Comprehensive Study of Sansalvamide A Derivatives and their Structure–Activity Relationships against Drug-Resistant Colon Cancer Cell Lines
  作者：Katerina Otrubova、Gerald Lushington、David Vander Velde、Kathleen L. McGuire、Shelli R. McAlpine

  DOI：10.1021/jm070731a

  日期：2008.2.1

  We report an extensive structure-activity relationship (SAR) of 62 compounds active against two drug-resistant colon cancer cell lines. Our comprehensive evaluation of two generations of compounds utilizes SAR, NMR, and molecular modeling to evaluate the key 3D features of potent compounds. Of the seven most potent compounds reported here, five are second-generation, emphasizing our ability to incorporate potent features found in the first generation and utilize their structures to design potency into the second generation. These analogs share no structural homology to current colon cancer drugs, are cytotoxic at levels on par with existing drugs treating other cancers, and demonstrate selectivity for drug-resistant colon cancer cell lines over noncancerous cell lines. Thus, we have established sansalvamide A as an excellent lead for treating, multiple drug-resistant colon cancers.