90764-90-2Relevant articles and documents
A Preclinical Candidate Targeting Mycobacterium tuberculosis KasA
Ahn, Yong-Mo,Alland, David,Awasthi, Divya,Capodagli, Glenn C.,Connell, Nancy,Freundlich, Joel S.,Grady, Courtney,Ho Liang, Hsin Pin,Inoyama, Daigo,Jadhav, Ravindra,Kumar, Pradeep,Li, Liping,Li, Shao-Gang,Mina, Marizel,Neiditch, Matthew B.,Park, Steven,Perlin, David S.,Richmann, Todd,Russo, Riccardo,Shrestha, Riju,Sukheja, Paridhi,Tsotetsi, Kholiswa,Wang, Xin,Zimmerman, Matthew,Dartois, Véronique
, p. 560 - 570 (2020/05/26)
Published Mycobacterium tuberculosis β-ketoacyl-ACP synthase KasA inhibitors lack sufficient potency and/or pharmacokinetic properties. A structure-based approach was used to optimize existing KasA inhibitor DG167. This afforded indazole JSF-3285 with a 30-fold increase in mouse plasma exposure. Biochemical, genetic, and X-ray studies confirmed JSF-3285 targets KasA. JSF-3285 offers substantial activity in an acute mouse model of infection and in the corresponding chronic infection model, with efficacious reductions in colony-forming units at doses as low as 5 mg/kg once daily orally and improvement of the efficacy of front-line drugs isoniazid or rifampicin. JSF-3285 is a promising preclinical candidate for tuberculosis. Inoyama et al. disclose the optimization of an indazole antitubercular targeting the β-ketoacyl-ACP synthase KasA. A structure-based approach has overcome significant issues with mouse metabolic stability and pharmacokinetics. A preclinical drug candidate has been delivered with efficacy in a mouse model of chronic M. tuberculosis infection at 5 mg/kg dosing.
Design and synthesis of Rho kinase inhibitors (II)
Iwakubo, Masayuki,Takami, Atsuya,Okada, Yuji,Kawata, Takehisa,Tagami, Yoshimichi,Ohashi, Hiroshi,Sato, Motoko,Sugiyama, Terumi,Fukushima, Kayoko,Iijima, Hiroshi
, p. 350 - 364 (2008/02/04)
In a previous study, we identified several structurally unrelated scaffolds of the Rho kinase inhibitor using pharmacophore information obtained from the results of a high-throughput screening and structural information from a homology model of Rho kinase. 1H-Indazole is one of the candidate scaffolds on which a new series of potent Rho kinase inhibitors could be developed. In this study, the detailed structure-activity relationship of 1H-indazole analogues was studied. During this study, we found that the cell-free enzyme inhibitory potential of Rho kinase inhibitors having the 1H-indazole scaffold did not necessarily correlate with their inhibitory potential toward the chemotaxis of cultured cells. The choice of the linker substructure was shown to be an important factor for the 1H-indazole analogues to inhibit the chemotaxis of cells. Optimization of the 1H-indazole inhibitors with respect to the in vitro inhibition of monocyte chemotaxis induced by MCP-1 was carried out. The inhibitory potential was improved both in the cell-free enzyme assay and in the chemotaxis assay.
Design and synthesis of Rho kinase inhibitors (I)
Takami, Atsuya,Iwakubo, Masayuki,Okada, Yuji,Kawata, Takehisa,Odai, Hideharu,Takahashi, Nobuaki,Shindo, Kazutoshi,Kimura, Kaname,Tagami, Yoshimichi,Miyake, Mika,Fukushima, Kayoko,Inagaki, Masaki,Amano, Mutsuki,Kaibuchi, Kozo,Iijima, Hiroshi
, p. 2115 - 2137 (2007/10/03)
Several structurally unrelated scaffolds of the Rho kinase inhibitor were designed using pharmacophore information obtained from the results of a high-throughput screening and structural information from a homology model of Rho kinase. A docking simulation using the ligand-binding pocket of the Rho kinase model helped to comprehensively understand and to predict the structure-activity relationship of the inhibitors. This understanding was useful for developing new Rho kinase inhibitors of higher potency and selectivity. We identified several potent platforms for developing the Rho kinase inhibitors, namely, pyridine, 1H-indazole, isoquinoline, and phthalimide.
