- Synthesis of Indole- and Pyrrole-Fused Seven-Membered Nitrogen Heterocycles via Acid-Base Switchable Cyclization Involving Cleavage of Amide C?N Bonds
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We report the method for synthesis of indole- and pyrrole-fused seven-membered nitrogen heterocycles by means of acid-base switchable cyclization reactions. The reactions involved cleavage of amide C?N bonds, chemoselective N-1 or C-3 acylation, and 1,4-M
- Hao, Yanke,Zhou, Pan,Niu, Kaikai,Song, Hongjian,Liu, Yuxiu,Zhang, Jingjing,Wang, Qingmin
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supporting information
p. 281 - 285
(2021/11/09)
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- Amide-Amine Replacement in Indole-2-carboxamides Yields Potent Mycobactericidal Agents with Improved Water Solubility
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Indolecarboxamides are potent but poorly soluble mycobactericidal agents. Here we found that modifying the incipient scaffold by amide-amine substitution and replacing the indole ring with benzothiophene or benzoselenophene led to striking (10-20-fold) im
- Tan, Yu Jia,Li, Ming,Gunawan, Gregory Adrian,Nyantakyi, Samuel Agyei,Dick, Thomas,Go, Mei-Lin,Lam, Yulin
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supporting information
p. 704 - 712
(2020/11/30)
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- Carbene-Catalyzed Enantioselective Aromatic N-Nucleophilic Addition of Heteroarenes to Ketones
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The aromatic nitrogen atoms of heteroarylaldehydes are activated by carbene catalysts to react with ketone electrophiles. Multi-functionalized cyclic N,O-acetal products are afforded in good to excellent yields and optical purities. Our reaction involves the formation of an unprecedented aza-fulvene-type acylazolium intermediate. A broad range of N-heteroaromatic aldehydes and electron-deficient ketone substrates works effectively in this transformation. Several of the chiral N,O-acetal products afforded through this protocol exhibit excellent antibacterial activities against Ralstonia solanacearum (Rs) and are valuable in the development of novel agrichemicals for plant protection.
- Liu, Yonggui,Luo, Guoyong,Yang, Xing,Jiang, Shichun,Xue, Wei,Chi, Yonggui Robin,Jin, Zhichao
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supporting information
p. 442 - 448
(2019/11/25)
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- THERAPEUTIC COMPOUNDS AND METHODS TO TREAT INFECTION
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Disclosed herein are compounds of formula (I), or a salt thereof and compositions comprising compounds of formula I that exhibit antibacterial activities, when tested alone and/or in combination with a bacterial efflux pump inhibitor. Also disclosed are methods of treating or preventing a bacterial infection in an animal comprising administering to the animal a compound of formula I alone or in combination with the administration of a bacterial efflux pump inhibitor.
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Page/Page column 81; 82
(2019/06/13)
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- RHO-ASSOCIATED PROTEIN KINASE INHIBITOR, PHARMACEUTICAL COMPOSITION COMPRISING THE SAME, AS WELL AS PREPARATION METHOD AND USE THEREOF
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The present invention relates to a Rho-associated protein kinase inhibitor of Formula (I), a pharmaceutical composition comprising the same, a preparation method thereof, and use thereof for the prevention or treatment of a disease mediated by the Rho-associated protein kinase (ROCK).
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Paragraph 0186; 0187
(2019/01/11)
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- One-Pot Base-Mediated Synthesis of Functionalized Aza-Fused Polycyclic Quinoline Derivatives
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A new one-pot protocol has been developed for the facile and efficient synthesis of aza-fused polycyclic quinolines (e.g., pyrrolo[1,2-a]quinolines) by the base-catalyzed reaction of 2-formylpyrroles and 2-halophenylacetonitriles. This reaction proceeded under transition metal-free conditions and showed high functional group tolerance, with the desired products being formed in good yields.
- Jiang, Zeng-Qiang,Miao, Da-Zhuang,Tong, Yao,Pan, Qiang,Li, Xiao-Tong,Hu, Ren-He,Han, Shi-Qing
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supporting information
p. 1913 - 1921
(2015/06/30)
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- Inhibition of 5-oxo-6,8,11,14-eicosatetraenoic acid-induced activation of neutrophils and eosinophils by novel indole oxe receptor antagonists
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5-Oxo-6,8,11,14-eicosatetraenoic acid (5-oxo-ETE) is a 5-lipoxygenase product that is a potent granulocyte chemoattractant, which induces the infiltration of eosinophils into human skin when injected intradermally. It could therefore be an important proinflammatory mediator in eosinophilic diseases such as asthma and allergic rhinitis, and the OXE receptor, which mediates its actions, is therefore an attractive drug target. Using a structure-based approach in which substituents mimicking the essential polar (C1-C5) and hydrophobic (C15-C20) regions of 5-oxo-ETE were incorporated on an indole scaffold, we identified two potent selective OXE antagonists with IC50 values of about 30 nM. Neither compound displayed agonist activity and both inhibited 5-oxo-ETE-induced chemotaxis and actin polymerization and were relatively resistant to metabolism by rat liver homogenates. The active enantiomers of these racemic antagonists were even more potent, with IC50 values of 10 nM. These selective OXE antagonists could potentially be useful therapeutic agents in allergic diseases such as asthma.
- Gore, Vivek,Gravel, Sylvie,Cossette, Chantal,Patel, Pranav,Chourey, Shishir,Ye, Qiuji,Rokach, Joshua,Powell, William S.
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p. 364 - 377
(2014/02/14)
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- PIPERAZINONE-SUBSTITUTED TETRAHYDRO-CARBOLINE MCH-1 ANTAGONISTS, METHODS OF MAKING, AND USES THEREOF
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The present invention relates to piperazinone-substituted tetrahydro-carboline derivatives of formula (I): having the substituents as described herein which are melanin-concentrating hormone (MCH-1) receptor antagonists. The present invention also relates
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Page/Page column 28-29
(2012/06/30)
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- Synthesis of Antileukemic Indolylvinyl-1-benzofurans and -benzothiophenes
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2--1-benzofuran and -benzothiophene compounds 6-13 and 18-22 with terminal amidinium or imidazolinium groups were synthesized; in their antileukemic activity in mice they surpass the isosteric 2,2'-vinylenebis(1-benzofuran) and -(benzo-thiophene) compounds.
- Dann, Otto,Char, Helmut,Fleischmann, Paul,Fricke, Helmut
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p. 438 - 455
(2007/10/02)
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