N-tBoc-N'-((1-fluorocyclooct-2-ynyl)carbonyl)-1,4-piperazine | 1360544-83-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: N-tBoc-N'-((1-fluorocyclooct-2-ynyl)carbonyl)-1,4-piperazine
• 英文别名: Tert-butyl 4-(1-fluorocyclooct-2-yne-1-carbonyl)piperazine-1-carboxylate；tert-butyl 4-(1-fluorocyclooct-2-yne-1-carbonyl)piperazine-1-carboxylate
• CAS: 1360544-83-7
• 化学式: C₁₈H₂₇FN₂O₃
• 分子量: 338.422
• InChiKey: KPAASMOUGJFKMO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  24
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  49.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N-tBoc-N'-((1-fluorocyclooct-2-ynyl)carbonyl)-1,4-piperazine 在 sodium carbonate 、 N,N-二异丙基乙胺 、 三氟乙酸 作用下， 以 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 1.51h， 生成
  参考文献：
  名称：

  用于肽环化，标记和连接的水溶性支架的合成

  摘要：

  描述了构象约束含有两个半胱氨酸的侧链未保护的线性肽的水溶性支架的合成和应用。这些支架包含具有正交反应性的功能，可用于标记和连接。这可以通过在水性介质中通过肟连接或应变促进的叠氮化物-炔烃环加成反应将两种不同的受约束肽进行化学连接来说明。

  DOI：

  10.1021/ol203259a
• 作为产物：
  描述：

  2-(ethoxycarbonyl)-2-fluorocyclooctanone 在 N-羟基-7-氮杂苯并三氮唑 、 水 、 双(三甲基硅烷基)氨基钾 、 N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 、 lithium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 甲苯 为溶剂， 反应 0.5h， 生成 N-tBoc-N'-((1-fluorocyclooct-2-ynyl)carbonyl)-1,4-piperazine
  参考文献：
  名称：

  用于肽环化，标记和连接的水溶性支架的合成

  摘要：

  描述了构象约束含有两个半胱氨酸的侧链未保护的线性肽的水溶性支架的合成和应用。这些支架包含具有正交反应性的功能，可用于标记和连接。这可以通过在水性介质中通过肟连接或应变促进的叠氮化物-炔烃环加成反应将两种不同的受约束肽进行化学连接来说明。

  DOI：

  10.1021/ol203259a

文献信息

• Application of Strain-Promoted Azide–Alkyne Cycloaddition and Tetrazine Ligation to Targeted Fc-Drug Conjugates
  作者：Joshua D. Thomas、Huiting Cui、Patrick, J. North、Thomas Hofer、Christoph Rader、Terrence R. Burke

  DOI：10.1021/bc300052u

  日期：2012.10.17

  We have previously described an approach whereby antibody Fc fragments harboring a single C-terminal selenocysteine residue (Fc-Sec) are directed against a variety of targets by changing the peptide or small molecule to which they are conjugated. In the present work, we describe methodology for improving the efficacy of these Fc-Sec conjugates by incorporating cytotoxic drugs. The Fc-Sec protein is first programmed to target specific tumor cell types by attachment of a bifunctional linker that contains a "clickable" handle (e.g., cyclobutane or cyclooctyne) in addition to a tumor cell-binding peptide or small molecule. Following Fc-Sec conjugation, a cytotoxic warhead is then attached by cycloaddition reactions of tetrazine or azide-containing linker. To validate this approach, we used a model system in which folic acid (FA) is the targeting moiety and a disulfide-linked biotin moiety serves as a cytotoxic drug surrogate. We demonstrated successful targeting of Fc-Sec proteins to folate-receptor expressing tumor cells. Tetrazine ligation was found to be an efficient method for biotin "arming" of the folate-targeted Fc-Sec proteins. We also report novel bioconjugation methodologies that use [4 + 2] cycloaddition reactions between tetrazines and cyclooctynes.
• [EN] NOVEL BICYCLIC PEPTIDE MIMETICS<br/>[FR] NOUVEAUX MIMÉTIQUES PEPTIDIQUES BICYCLIQUES
  申请人：PEPSCAN SYSTEMS BV

  公开号：WO2012057624A1

  公开（公告）日：2012-05-03

  The invention relates to the fields of peptide mimetics and pharmacy. The invention provides novel cycle forming linkers and bicyclic peptide mimetics prepared therefrom. The linkers comprise an organic moiety P, leaving groups X1 and X2 at benzylic positions, and a reactive group Q capable of participating in a linking reaction. The organic moiety P contains an aromatic (hetero) cycle, an aliphatic heterocycle comprising a positively charged nitrogen atom, and a neutral nitrogen atom.