Category: isoquinoline

Cox, Robert M. published the artcileOrally efficacious broad-spectrum allosteric inhibitor of paramyxovirus polymerase, Recommanded Product: Isoquinolin-5-ylboronic acid, the publication is Nature Microbiology (2020), 5(10), 1232-1246, database is CAplus and MEDLINE.

In a high-throughput screen for inhibitors of HPIV3 (a major cause of acute respiratory infection), we identified GHP-88309-a non-nucleoside inhibitor of viral polymerase activity that possesses unusual broad-spectrum activity against diverse paramyxoviruses including respiroviruses (i.e., HPIV1 and HPIV3) and morbilliviruses (i.e., MeV). Resistance profiles of distinct target viruses overlapped spatially, revealing a conserved binding site in the central cavity of the viral polymerase (L) protein that was validated by photoaffinity labeling-based target mapping. Mechanistic characterization through viral RNA profiling and in vitro MeV polymerase assays identified a block in the initiation phase of the viral polymerase. GHP-88309 showed nanomolar potency against HPIV3 isolates in well-differentiated human airway organoid cultures, was well tolerated (selectivity index > 7,111) and orally bioavailable, and provided complete protection against lethal infection in a Sendai virus mouse surrogate model of human HPIV3 disease when administered therapeutically 48 h after infection. Recoverees had acquired robust immunoprotection against reinfection, and viral resistance coincided with severe attenuation. This study provides proof of the feasibility of a well-behaved broad-spectrum allosteric antiviral and describes a chemotype with high therapeutic potential that addresses major obstacles of anti-paramyxovirus drug development.

Nature Microbiology published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C9H8BNO2, Recommanded Product: Isoquinolin-5-ylboronic acid.

Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem

Yu, Mingfeng published the artcilePotent and orally bioavailable CDK8 inhibitors: Design, synthesis, structure-activity relationship analysis and biological evaluation, HPLC of Formula: 371766-08-4, the publication is European Journal of Medicinal Chemistry (2021), 113248, database is CAplus and MEDLINE.

CDK8 regulates transcription either by phosphorylation of transcription factors or, as part of a four-subunit kinase module, through a reversible association of the kinase module with the Mediator complex, a highly conserved transcriptional coactivator. Deregulation of CDK8 has been found in various types of human cancer, while the role of CDK8 in suppressing anti-cancer response of natural killer cells is being understood. Currently, CDK8-targeting cancer drugs are highly sought-after. Herein authors detail the discovery of a series of novel pyridine-derived CDK8 inhibitors. Medicinal chem. optimization gave rise to I (AU1-100), a potent CDK8 inhibitor with oral bioavailability. The compound inhibited the proliferation of MV4-11 acute myeloid leukemia cells with the kinase activity of cellular CDK8 dampened. No systemic toxicol. was observed in the mice treated with I. These results warrant further pre-clin. studies of I as an anti-cancer agent.

European Journal of Medicinal Chemistry published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C5H5BrN2, HPLC of Formula: 371766-08-4.

Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem

Paulsen, Janet L. published the artcileStructural analysis of the active sites of dihydrofolate reductase from two species of Candida uncovers ligand-induced conformational changes shared among species, HPLC of Formula: 371766-08-4, the publication is Bioorganic & Medicinal Chemistry Letters (2013), 23(5), 1279-1284, database is CAplus and MEDLINE.

A novel strategy for targeting the pathogenic organisms Candida albicans and Candida glabrata focuses on the development of potent and selective antifolates effective against dihydrofolate reductase. Crystal structure anal. suggested that an essential loop at the active site (Thr 58-Phe 66) differs from the analogous residues in the human enzyme, potentially providing a mechanism for achieving selectivity. In order to probe the role of this loop, we employed chem. synthesis, crystal structure determination and mol. dynamics simulations. The results of these analyses show that the loop residues undergo ligand-induced conformational changes that are similar among the fungal and human species.

Bioorganic & Medicinal Chemistry Letters published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C9H8BNO2, HPLC of Formula: 371766-08-4.

Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem

Carpenter, Joseph published the artcileUtilization of an Active Site Mutant Receptor for the Identification of Potent and Selective Atypical 5-HT_2C Receptor Agonists, Synthetic Route of 371766-08-4, the publication is Journal of Medicinal Chemistry (2017), 60(14), 6166-6190, database is CAplus and MEDLINE.

Agonism of the 5-HT_2C receptor represents one of the most well-studied and clin. proven mechanisms for pharmacol. weight reduction Selectivity over the closely related 5-HT_2A and 5-HT_2B receptors is critical as their activation has been shown to lead to undesirable side effects and major safety concerns. In this communication, we report the development of a new screening paradigm that utilizes an active site mutant D134A (D3.32) 5-HT_2C receptor to identify atypical agonist structures. We addnl. report the discovery and optimization of a novel class of nonbasic heterocyclic amide agonists of 5-HT_2C. SAR investigations around the screening hits provided a diverse set of potent agonists at 5-HT_2C with high selectivity over the related 5-HT_2A and 5-HT_2B receptor subtypes. Further optimization through replacement of the amide with a variety of five- and six-membered heterocycles led to the identification of 6-(1-ethyl-3-(quinolin-8-yl)-1H-pyrazol-5-yl)pyridazin-3-amine (69). Oral administration of 69 to rats reduced food intake in an ad libitum feeding model, which could be completely reversed by a selective 5-HT_2C antagonist.

Journal of Medicinal Chemistry published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C9H8BNO2, Synthetic Route of 371766-08-4.

Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem

Ye, Bihai published the artcileRhodium-Catalyzed Asymmetric Conjugate Pyridylation with Pyridylboronic Acids, Quality Control of 371766-08-4, the publication is ACS Catalysis (2022), 12(4), 2434-2440, database is CAplus.

In this study, the rhodium-catalyzed asym. conjugate pyridylation of α,β-unsaturated carbonyl compounds with pyridylboronic acids was reported. The bifunctional chiral amide-diene ligand, which dramatically accelerated the reaction via possible H-bonding activation, and alc. solvent, which significantly inhibited the competing protodeboronation of pyridylboronic acids under rhodium catalysis, worked in concert to promote the reaction, thus enabling production of the pyridylation products in high yields (up to 99%) with good enantioselectivities (up to >99% ee).

ACS Catalysis published new progress about 371766-08-4. 371766-08-4 belongs to isoquinoline, auxiliary class Isoquinoline,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Isoquinolin-5-ylboronic acid, and the molecular formula is C11H15NO2, Quality Control of 371766-08-4.

Referemce:
https://en.wikipedia.org/wiki/Isoquinoline,
Isoquinoline | C9H7N – PubChem