isopropyl 6,11-dioxo-6,11- dihydrobenzo[f]pyrido[1,2-a]indole-12-carboxylate | 670247-36-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: isopropyl 6,11-dioxo-6,11- dihydrobenzo[f]pyrido[1,2-a]indole-12-carboxylate
• 英文别名: Propan-2-yl 6,11-dioxonaphtho[2,3-b]indolizine-12-carboxylate
• CAS: 670247-36-6
• 化学式: C₂₀H₁₅NO₄
• 分子量: 333.343
• InChiKey: HQMXVEISGVMDCV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  64.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  methyl 6,11-dioxo-6,11- dihydrobenzo[f]pyrido [1,2-a]indole-12-carboxylate 在 4-二甲氨基吡啶 、 水 、 potassium carbonate 、 N,N'-二环己基碳二亚胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 6.0h， 生成 isopropyl 6,11-dioxo-6,11- dihydrobenzo[f]pyrido[1,2-a]indole-12-carboxylate
  参考文献：
  名称：

  作为IDO1抑制剂的新型萘并吲哚嗪和吲哚嗪喹啉-5,12-二酮衍生物的设计、合成和构效关系研究

  摘要：

  吲哚胺 2,3-双加氧酶 1 (IDO1) 被认为是癌症免疫治疗的一个有希望的靶点。迄今为止，许多萘醌衍生物已被报道为 IDO1 抑制剂。在此，合成了两个系列的萘醌衍生物，naphthoindolizine 和 indolizinoquinoline-5,12-dione 衍生物，并评估了它们的 IDO1 抑制活性。与色氨酸 2,3-双加氧酶 (TDO) 相比，大多数目标化合物对 IDO1 显示出显着的抑制效力和高选择性。还总结了构效关系。最有效的化合物5c（IC 50 23 nM，IDO1 酶）和5b'（IC 50 372 nM，HeLa 细胞）被鉴定为有前景的先导化合物。

  DOI：

  10.1016/j.bmc.2018.08.028

文献信息

• Copper(II)-Catalyzed Carbon–Carbon Triple Bond Cleavage of Internal Alkynes for the Synthesis of Annulated Indolizines
  作者：Jinwei Sun、Fuyao Wang、Huayou Hu、Xiangshan Wang、Hui Wu、Yun Liu

  DOI：10.1021/jo500456d

  日期：2014.5.2

  Cleavage of C≡C bond in butynedioates via copper(II)-catalyzed reaction has been achieved, leading to the synthesis of benzo[f]pyrido[1,2-a]indole-6,11-diones in high yields by one-pot three-component reactions. In this unprecedented C≡C bond cleavage reaction of internal alkynes, both fragments from the alkyne are successively incorporated into the products.

  通过铜（II）催化的反应实现了对丁炔中C≡C键的裂解，从而导致高收率的苯并[ f ]吡啶并[1,2- a ]吲哚-6,11-二酮的单-合成。锅三成分反应。在内部炔烃的这种前所未有的C≡C键裂解反应中，来自炔烃的两个片段均先后结合到产物中。
• 6,11-Dioxobenzo[<i>f</i>]pyrido[1,2-<i>a</i>]indoles Kill <i>Mycobacterium tuberculosis</i> by Targeting Iron–Sulfur Protein Rv0338c (IspQ), A Putative Redox Sensor
  作者：Rita Székely、Monica Rengifo-Gonzalez、Vinayak Singh、Olga Riabova、Andrej Benjak、Jérémie Piton、Mena Cimino、Etienne Kornobis、Valerie Mizrahi、Kai Johnsson、Giulia Manina、Vadim Makarov、Stewart T. Cole

  DOI：10.1021/acsinfecdis.0c00531

  日期：2020.11.13

  Screening of a diversity-oriented compound library led to the identification of two 6,11-dioxobenzo[f]pyrido[1,2-a]indoles (DBPI) that displayed low micromolar bactericidal activity against the Erdman strain of Mycobacterium tuberculosis in vitro. The activity of these hit compounds was limited to tubercle bacilli, including the nonreplicating form, and to Mycobacterium marinum. On hit expansion and investigation of the structure activity relationship, selected modifications to the dioxo moiety of the DBPI scaffold were either neutral or led to reduction or abolition of antimycobacterial activity. To find the target, DBPI-resistant mutants of M. tuberculosis Erdman were raised and characterized first microbiologically and then by whole genome sequencing. Four different mutations, all affecting highly conserved residues, were uncovered in the essential gene rv0338c (ispQ) that encodes a membrane-bound protein, named IspQ, with 2Fe-2S and 4Fe-4S centers and putative iron-sulfur-binding reductase activity. With the help of a structural model, two of the mutations were localized close to the 2Fe-2S domain in IspQ and another in transmembrane segment 3. The mutant genes were recessive to the wild type in complementation experiments and further confirmation of the hit-target relationship was obtained using a conditional knockdown mutant of rv0338c in M. tuberculosis H37Rv. More mechanistic insight was obtained from transcriptome analysis, following exposure of M. tuberculosis to two different DBPI; this revealed strong upregulation of the redox-sensitive SigK regulon and genes induced by oxidative and thiol-stress. The findings of this investigation pharmacologically validate a novel target in tubercle bacilli and open a new vista for tuberculosis drug discovery.