4053-33-2

Usage

Structure

Bicyclic, derivative of quinolinone

Usage

Building block in the synthesis of pharmaceuticals and agrochemicals

Biological activity

Exhibits biological activity, studied for potential medicinal properties

Importance

Important intermediate in organic synthesis, widely used in the chemical industry.

Upstream product

• 7661-55-4 5-methylquinoline 
• 23980-96-3 (E)-N-(3-methylphenyl)-3-ethoxypropenamide 
• 108-44-1 1-amino-3-methylbenzene 
• 4964-71-0 5-bromoquinoline 
• 4053-41-2 5-methylquinoline 1-oxide 
• 57830-64-5 3′-methylcinnamanilide 
• 41085-43-2 2-bromo-3-nitrotoluene 

Relevant academic research and scientific papers

PRMT5 INHIBITOR COMPOUNDS

A series of PRMT5 inhibitor compounds are described. The compounds are useful as PRMT5 inhibitor compounds and in the treatment of PRMT5 mediated diseases, disorders, and symptoms thereof.

Enantioselective Intermolecular [2 + 2] Photocycloaddition Reactions of 2(1H)-Quinolones Induced by Visible Light Irradiation

In the presence of a chiral thioxanthone catalyst (10 mol %) the title compounds underwent a clean intermolecular [2 + 2] photocycloaddition with electron-deficient olefins at λ = 419 nm. The reactions not only proceeded with excellent regio- and diastereoselectivity but also delivered the respective cyclobutane products with significant enantiomeric excess (up to 95% ee). Key to the success of the reactions is a two-point hydrogen bonding between quinolone and catalyst enabling efficient energy transfer and high enantioface differentiation. Preliminary work indicated that solar irradiation can be used for this process and that the substrate scope can be further expanded to isoquinolones.

2-AMINOQUINOLINE-BASED COMPOUNDS FOR POTENT AND SELECTIVE NEURONAL NITRIC OXIDE SYNTHASE INHIBITION

Various 2-aminoquinoline compounds as can be used, in vivo or in vitro, for selective inhibition of neuronal nitric oxide synthase.

2-aminoquinoline-based compounds for potent and selective neuronal nitric oxide synthase inhibition

Various 2-aminoquinoline compounds as can be used, in vivo or in vitro, for selective inhibition of neuronal nitric oxide synthase.

Creating novel activated factor XI inhibitors through fragment based lead generation and structure aided drug design

Activated factor XI (FXIa) inhibitors are anticipated to combine anticoagulant and profibrinolytic effects with a low bleeding risk. This motivated a structure aided fragment based lead generation campaign to create novel FXIa inhibitor leads. A virtual screen, based on docking experiments, was performed to generate a FXIa targeted fragment library for an NMR screen that resulted in the identification of fragments binding in the FXIa S1 binding pocket. The neutral 6-chloro-3,4-dihydro-1H-quinolin-2-one and the weakly basic quinolin-2-amine structures are novel FXIa P1 fragments. The expansion of these fragments towards the FXIa prime side binding sites was aided by solving the X-ray structures of reported FXIa inhibitors that we found to bind in the S1-S1'-S2' FXIa binding pockets. Combining the X-ray structure information from the identified S1 binding 6-chloro-3,4-dihydro-1H-quinolin-2-one fragment and the S1-S1'-S2' binding reference compounds enabled structure guided linking and expansion work to achieve one of the most potent and selective FXIa inhibitors reported to date, compound 13, with a FXIa IC50 of 1.0 nM. The hydrophilicity and large polar surface area of the potent S1-S1'-S2' binding FXIa inhibitors compromised permeability. Initial work to expand the 6-chloro-3,4-dihydro-1H-quinolin-2-one fragment towards the prime side to yield molecules with less hydrophilicity shows promise to afford potent, selective and orally bioavailable compounds.

Simplified 2-aminoquinoline-based scaffold for potent and selective neuronal nitric oxide synthase inhibition

Since high levels of nitric oxide (NO) are implicated in neurodegenerative disorders, inhibition of the neuronal isoform of nitric oxide synthase (nNOS) and reduction of NO levels are therapeutically desirable. Nonetheless, many nNOS inhibitors mimic l-arginine and are poorly bioavailable. 2-Aminoquinoline-based scaffolds were designed with the hope that they could (a) mimic aminopyridines as potent, isoform-selective arginine isosteres and (b) possess chemical properties more conducive to oral bioavailability and CNS penetration. A series of these compounds was synthesized and assayed against purified nNOS enzymes, endothelial NOS (eNOS), and inducible NOS (iNOS). Several compounds built on a 7-substituted 2-aminoquinoline core are potent and isoform-selective; X-ray crystallography indicates that aminoquinolines exert inhibitory effects by mimicking substrate interactions with the conserved active site glutamate residue. The most potent and selective compounds, 7 and 15, were tested in a Caco-2 assay and showed good permeability and low efflux, suggesting high potential for oral bioavailability.

O-nitrophenyltriflates in quinoline synthesis : Easy access to a streptonigrin synthon

An efficient route to a wide range of 2-hydroxyquinolines from o-nitrophenyltriflates via a Heck reaction is reported, with emphasis on the preparation of a synthetic equivalent of the streptonigrin AB ring system.